Regional Mathematical Center
 https://rmc.sfedu.ru/

 Institute of Mathematics, Mechanics
 and Computer Sciences
 http://www.mmcs.sfedu.ru/

 OTHA research network in
 Operator Theory and Harmonic Analysis
 http://msrn.sfedu.ru/ 

10.07.2025, 6 pm (UTC+3)

On the existence of the fundamental transfer matrix in potential scattering, propagating-wave approximation, and exactness of the Born approximation
Prof. A. Mostafazadeh
Koc University, Turkey

Abstract
​Presentation
Video

26.06.2025, 6 pm (UTC+3)

A Schrödinger-type Equation in one Complex Space Variable
Prof. M. Leote Esquivel
NOVA University Lisbon, Portugal

Abstract
​Presentation
Video

12.06.2025, 6 pm (UTC+3)

Dynkin Games for Lévy processes
Prof. E. Mordecki
University of the Republic, Uruguay

Abstract
​Presentation 
Video

29.05.2025, 6 pm (UTC+3)

Convexification method in inverse problems
Prof. M.V. Klibanov
University of North Carolina at Charlotte, USA

Abstract
​Presentation
Video

15.05.2025, 6 pm (UTC+3)

Riesz bases of reproducing kernels and complete interpolating sequences in shift-invariant spaces
Prof. A.D. Baranov
Saint Petersburg State University, Russia

Abstract
​Presentation
Video 

17.04.2025, 6 pm (UTC+3)

Travelling waves in strongly inhomogeneous media
Prof. E.N. Pelinovsky
Institute of Applied Physics, Russia

Abstract
​Presentation
Video 

17.04.2025, 6 pm (UTC+3)

Wigner kernels of operators: controlling ghost frequencies
Prof. L. Rodino
University of Turin, Italy

Abstract
​Presentation
Video

20.03.2025, 6 pm (UTC+3)

Schrödinger equation with finitely many δ-interactions: closed form, integral and series representations for solutions
Prof. V.A. Vicente Benitez
Universidad Nacional Autonoma de Mexico, Mexico

Abstract
​Presentation
Video

06.03.2025, 6 pm (UTC+3)

Direct and Inverse Spherically Symmetric Transmission Eigenvalue Problems: Past, Present, and Future
Dr. N. Pallikarakis
National Technical University of Athens, Greece

Abstract
​Presentation
Video

20.02.2025, 6 pm (UTC+3)

On the formulation of a Bäcklund transformation in the Wahlquist-Estabrook sense for extensions of the Korteweg-de Vries (KdV) equation
Prof. A. V. Sotomayor Aguirre
University of Antofagasta, Chile

Abstract

06.02.2025, 6 pm (UTC+3)

On a new formulation of the inverse problem of determining the order of fractional derivatives in partial differential equations
Prof. R. Ashurov
Institute of Mathematics of the Academy of Science, Uzbekistan

Abstract
​Presentation
Video

23.01.2025, 6 pm (UTC+3)

Fenton type minimax problems for sum of translates functions
Prof. S. Révész
Hungarian Academy of Sciences, Hungary

Abstract
​Presentation
Video

09.01.2025, 6 pm (UTC+3)

Convolution integro-differential equations on Lie groups, Generic Bessel Potential Spaces and fundamental solutions
Prof. R. Duduchava
University of Georgia, Georgia

Abstract
​Presentation
Video

26.12.2024, 6 pm (UTC+3)

On analytical representation of homogeneous polynomials on spaces of measurable functions
Prof. Z. Kusraeva
Regional Mathematical Center of SFEDU, Russia

Abstract
​Presentation
Video

12.12.2024, 6 pm (UTC+3)

On the Boyarsky-Meyers estimates
Prof. G. A. Chechkin
Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

28.11.2024, 6 pm (UTC+3)

Non-local abstract integro-differential equations
Prof. J. E. Restrepo
CINVESTAV, Mexico

Abstract
​Presentation
Video

14.11.2024, 6 pm (UTC+3)

The generalized eigenvalue problem for the classical Euler differential equation and Meijer's G-function
Prof. F. Gesztesy
Baylor University, USA

Abstract
​Presentation
Video

31.10.2024, 6 pm (UTC+3)

Refinements of Berry-Esseen Inequalities in Terms of Lyapunov Coefficients
Prof. S. Bobkov
University of Minnesota, USA

Abstract
​Presentation
Video

17.10.2024, 6 pm (UTC+3)

Weighted Approximations by Sampling-type Series
Prof. T. Acar
Selcuk University, Turkey

Abstract
​Presentation
Video

03.10.2024, 6 pm (UTC+3)

Fractional calculus with respect to functions: historical overview, transmutation relations, and generalizations
Prof. A. Fernandez
Eastern Mediterranean University, Cypress

Abstract
​Presentation 
Video

19.09.2024, 6 pm (UTC+3)

Inverse problems for screens
Prof. L. Paivarinta
University of Helsinki, Finland

Abstract
​Presentation
Video

05.09.2024, 6 pm (UTC+3)

On the discrete eigenvalues of Schrödinger operators with complex potentials
Prof. S. Boegli
Durham University, UK

Abstract
​Presentation
Video

25.07.2024, 6 pm (UTC+3)

On various classes of hypercyclic and topologically transitive operators on Banach spaces
Prof. S. Ivkovic
Serbian Academy of Sciences and Arts, Serbia

Abstract
​Presentation
Video

11.07.2024, 6 pm (UTC+3)

Some remarks on the recent publications in the metric fixed point theory
Prof. E. Karapinar
China Medical University, Taiwan

Abstract
​Presentation
Video

27.06.2024, 6 pm (UTC+3)

Instability theory of stationary kink and anti-kink profiles for the sine-Gordon equation on a Y-junction graph
Prof. R. Plaza
National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

13.06.2024, 6 pm (UTC+3)

Well-posedness of the governing equations for quasi-linear viscoelastic model with pressure-dependent moduli in which both stress and strain appear linearly
Prof. V. Kovtunenko
Karl-Franzens University of Graz, Austria

Abstract
​Presentation
Video

30.05.2024, 6 pm (UTC+3)

Solvability and Mittag;Leffler stability analysis for time fractional partial differential equations
Prof. A. Debbouche
8 Mai 1945 - Guelma University, Algeria

Abstract

16.05.2024, 6 pm (UTC+3)

Separation of solutions and the attractivity of fractional-order positive linear delay systems with variable coefficients
Prof. T.T. Hoang
Vietnam Academy of Science and Technology, Vietnam

Abstract
​Presentation
Video

02.05.2024, 6 pm (UTC+3)

Gradient estimates for harmonic and generalized harmonic functions
Prof. M. Arsenovic
University of Belgrade, Serbia

Abstract
​Presentation
Video

18.04.2024, 6 pm (UTC+3)

The Cauchy problem for parabolic differential-difference equations: integral representations of solutions and their long-time behavior
Prof. A. Muravnik
Peoples' Friendship University, Russia

Abstract
​Video

04.04.2024, 6 pm (UTC+3)

On smoothness of generalized eigenfunctions for differential-difference operators
Prof. A. Skubachevskii
Peoples' Friendship University, Russia

Abstract
​Presentation
Video

21.03.2024, 6 pm (UTC+3)

Mathematical Models in Pure and Applied Mathematics
Prof. I. Andrianov
Aachen University, Germany

Abstract
​Presentation
Video

07.03.2024, 6 pm (UTC+3)

Semiclassical asymptotics on stratified manifolds
Prof. V.E. Nazaikinskii
Russian Academy of Sciences, Russia

Abstract
​Presentation
Video

22.02.2024, 6 pm (UTC+3)

How to calculate the roots of an arbitrary polynomial: Hadamard and Vandermonde determinants and Bernoulli - Euler - Lagrange - Aitken type numerical method for roots of polynomials
Prof. A.V. Lebedev
Belarusian State University, Belarus

Abstract
​Presentation
Video

08.02.2024, 6 pm (UTC+3)

On algebras generated by integral operators with homogeneous kernels
Prof. O.G. Avsyankin
Southern Federal University, Russia

Abstract
​Video

25.01.2024, 6 pm (UTC+3)

Minimal commutant and double commutant property for analytic Toeplitz operators
Prof. F. León-Saavedra
University of Cádiz, Spain

Abstract
​Presentation
Video

11.01.2024, 6 pm (UTC+3)

On the norm of the Riesz projection from L^∞ to L^p
Prof. S. Konyagin
Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

28.12.2023, 6 pm (UTC+3)

On the Bishop-Phelps property
Prof. F.J. Garcia-Pacheco
University of Cadiz, Spain

Abstract
​Presentation
Video

14.12.2023, 6 pm (UTC+3)

Orthogonal polynomials. Fourier series in orthogonal polynomials. Trace formula and asymptotics of Forsythe determinant.
Prof. B. Osilenker
Moscow State University of Civil Engineering, Russia

Abstract
​Presentation
Video

30.11.2023, 6 pm (UTC+3)

Subordination principle, stochastic solutions and Feynman-Kac formulae for generalized time fractional evolution equations
Prof. Ya. Kinderknecht
University of Kassel, Germany

Abstract
​Presentation
Video

16.11.2023, 6 pm (UTC+3)

Bi-parameter Potential theory and some applications to holomorphic spaces
Prof. N. Arcozzi
University of Bologna, Italy

Abstract
​Video

02.11.2023, 6 pm (UTC+3)

On the theory of functions of omega-bounded type
Prof. A. Jerbashian
Institute of Mathematics, National Academy of Sciences of Armenia, Armenia

Abstract
​Presentation
Video

19.10.2023, 6 pm (UTC+3)

On direct and inverse Kolmogorov equations for purely jump-like Markov processes and their generalizations
Prof. A.N. Shiryaev
Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

05.10.2023, 6 pm (UTC+3)

The Landau Hamiltonian with delta-potentials supported on curves
Prof. J. Behrndt
Graz University of Technology, Austria

Abstract
​Presentation
Video

21.09.2023, 6 pm (UTC+3)

A Tale of Three Coauthors: Comparison of Ising Models
Prof. B. Simon
California Institute of Technology, USA

Abstract
​Presentation
Video

07.09.2023, 6 pm (UTC+3)

On Hitchin-Thorpe inequality for four-dimensional compact Ricci solitons
Prof. E. Ribeiro Jr.
Federal University of Ceará, Brazil

Abstract
​Presentation
Video

27.07.2023, 6 pm (UTC+3)

​​​​​​​Fixed-point theory and Greens functions for the solution of DEs: An iterative strategy
Prof. S. Khoury
American University of Sharjah, United Arab Emirates

Abstract
​Presentation
Video

13.07.2023, 6 pm (UTC+3)

​​​​​​​The Energy Spreading PONS Transform and its Applications
Prof. J. Byrnes
Prometheus Inc., USA

Abstract
​Presentation
Video

29.06.2023, 6 pm (UTC+3)

​​​​​​​Hilbert C*-module independence
Prof. M.S. Moslehian
Ferdowsi University of Mashhad, Iran

Abstract
​Video

15.06.2023, 6 pm (UTC+3)

​​​​​​​A survey on current results in Theory of Lieb-Thirring inequalities
Prof. A. Laptev
Imperial College London, UK

Abstract
​Presentation
Video

01.06.2023, 6 pm (UTC+3)

​​​​​​​Toeplitz operators and Bergman projections on weighted spaces of holomorphic functions
Prof. W. Lusky
University of Paderborn, Germany

Abstract
​Presentation
Video

18.05.2023, 6 pm (UTC+3)

​​​​​​​Formation of singularities of two-dimensional soliton equations represented by L,A,B-triples
Prof. I. Taimanov
Sobolev Institute of Mathematics, Russia, and Novosibirsk State University, Russia

Abstract
​Presentation
Video

04.05.2023, 6 pm (UTC+3)

​​​​​​​Superposition operators on spaces of analytic functions
Prof. D. Girela
University of Malaga, Spain

Abstract
​Presentation
Video

20.04.2023, 6 pm (UTC+3)

​​​​​​​Quasi-Bessel equations: existence and hyper-dimensionality
Prof. P. Dubovski
Stevens Institute of Technology, USA

Abstract
​Presentation
Video

06.04.2023, 6 pm (UTC+3)

​​​​​​​Partially holomorphic functions in several variables
Prof. M. Lawrence
Nazarbayev University, Kazakhstan

Abstract
​Presentation
Video

23.03.2023, 6 pm (UTC+3)

​​​​​​​A theory of reproducing Hardy and Bergman spaces in octonionic settings
Prof. S. Kraußhar
The University of Erfurt, Germany

Abstract
​Presentation
Video

09.03.2023, 6 pm (UTC+3)

On the sharp estimates for convolution operators with oscillatory kernel
Prof. I. A. Ikromov
Institute of Mathematics named after V.I. Romanovsky, Uzbekistan

Abstract
​Presentation
Video

23.02.2023, 6 pm (UTC+3)

Investigation of common properties of Lip and H^∞ functions (preliminary report)
Prof. R.M. Aron
Kent State University, USA

Abstract
​Presentation
Video

09.02.2023, 6 pm (UTC+3)

Toeplitz operators on quotient domains
Prof. E.K. Narayanan
Indian Institute of Science, India

Abstract
​Presentation
Video

26.01.2023, 6 pm (UTC+3)

Bianalytic polynomial approximations, Nevanlinna domains and univalent functions in model spaces
Prof. K. Fedorovskiy
Lomonosov Moscow State University, Russia, and Saint Petersburg State University, Russia

Abstract
​Presentation
Video

12.01.2023, 6 pm (UTC+3)

Multi-term fractional integro-differential equations in power growth function spaces
Prof. K.T. Vu.
University of West Georgia, USA

Abstract
​Presentation
Video

22.12.2022, 6 pm (UTC+3)

On spectral theory of metric graphs
Prof. P. Kurasov
Stockholm University, Sweden

Abstract
​Presentation
Video

08.12.2022, 6 pm (UTC+3)

Discrete spectrum of polynomially compact pseudodifferential operators and applications to the Neumann-Poincare operator in 3D elasticity
Prof. G. Rozenblum
Chalmers University of Technology, Sweden, The Euler International Mathematical Institute, Russia, and University of Science and Technology "Sirius", Russia

Abstract
​Presentation
Video

24.11.2022, 6 pm (UTC+3)

On solutions of a multi-phase Stefan-Riemann problem
Prof. E. Panov
Yaroslav-the-Wise Novgorod State University, Russia

Abstract
​Presentation
Video

10.11.2022, 6 pm (UTC+3)

Do biological species exist as mathematical solutions?
Prof. V. Vol'pert
Institut Camille Jordan, France, and Nikol'skii Mathematical Institute of Peoples' Friendship University, Russia

Abstract
​Presentation
Video

27.10.2022, 6 pm (UTC+3)

Extended Fractional Hypergeometric Function and Applications
Prof. P. Agarwal
Anand International College of Engineering, India

Abstract
​Presentation
Video

13.10.2022, 6 pm (UTC+3)

Distance between two subsets of a unit-volume convex body
Prof. A. Kanel-Belov
Bar-Ilan University, Department of Mathematics, Israel

Abstract
​Presentation
Video

29.09.2022, 6 pm (UTC+3)

On the theory of the subtrigonometric functions
Prof. X.-J. Yang
China University of Mining and Technology, China

Abstract
​Presentation
Video

15.09.2022, 6 pm (UTC+3)

Inverse Spectral Problems for Differential Operators
Prof. V. Yurko
Saratov State University, Russia

Abstract
​Presentation
Video

01.09.2022, 6 pm (UTC+3)

Norming constants of embedded bound states and bounded positon solutions of the Korteweg-de Vries equation
Prof. A. Rybkin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

21.07.2022, 6 pm (UTC+3)

To the Spectral Theory of Hausdorff Operators
Prof. A. Mirotin
Francisk Skorina Gomel State University, Belarus

Abstract
​Presentation
Video

07.07.2022, 6 pm (UTC+3)

Multivariate approximation and one problem of combinatorial number theory
Prof. V. Protasov
University of L'Aquila, Italy, and Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

23.06.2022, 6 pm (UTC+3)

A Simple Wiener-Hopf factorization method for pricing options with barriers in Levy-driven models
Prof. O. Kudryavtsev
Russian Customs Academy, Southern Federal University, Russia

Abstract
​Presentation
Video

09.06.2022, 6 pm (UTC+3)

Multiscale modeling of cardiovascular system
Prof. S. Simakov
Moscow Institute of Physics and Technology, Russia

Abstract
​Presentation
Video

26.05.2022, 6 pm (UTC+3)

Recovery singularities in quasi-linear biharmonic operator
Prof. V. Serov
University of Oulu, Finland 

Abstract
​Presentation
Video

12.05.2022, 6 pm (UTC+3)

Semiclassical Approximation with Compex Phases for Constructing Effective Plancherel-Rotach type asymptotics of 1-D and 2-D orthogonal polynomials
Prof. S. Dobrokhotov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Russia 

Abstract
​Presentation 
Video

28.04.2022, 6 pm (UTC+3)

Inverse spectral problem for the matrix Sturm-Liouville operator
Prof. N. Bondarenko
Samara National Research University, Saratov State University, Russia 

Abstract
​Presentation
Video

14.04.2022, 6 pm (UTC+3)

Mathematical problems in the theory of topological insulators
Prof. A. Sergeev
Steklov Mathematical Institute of RAS, Russia, and MSU Faculty of Mechanics and Mathematics, Russia 

Abstract
​Presentation
Video

31.03.2022, 6 pm (UTC+3)

An analogue of Young's inequality for convolutions for general Morrey-type spaces
Prof. V. Burenkov
S.M. Nikolskii Mathematical Institute, Peoples' Friendship University, Russia 

Abstract
​Presentation 
Video 

17.03.2022, 6 pm (UTC+3)

Characteristic Lie algebra of Klein-Gordon equation and higher symmetries
Prof. D. Millionschikov
MSU Faculty of Mechanics and Mathematics, Russia, and Gubkin University, National University of Oil and Gas, Russia

Abstract
​Presentation
Video

03.03.2022, 6 pm (UTC+3)

Nonlinear composition operators in generalized Morrey spaces
Prof. M. Lanza de Cristoforis
University of Padova, Italy

Abstract 
​Presentation
Video

17.02.2022, 6 pm (UTC+3)

Asymptotics of eigenvalues and eigenvectors of Toeplitz matrices
Prof. S. Grudsky
CINVESTAV, Mexico

Abstract
​Presentation 
Video 

03.02.2022, 6 pm (UTC+3)

Wavelet Approximation in Orlicz Spaces
Prof. M. Skopina
St. Petersburg State University, Russia, and Regional Mathematical Center SFedU, Russia

Abstract
​Presentation
Video

 20.01.2022, 6 pm (UTC+3)

Perturbations of periodic Sturm-Liouville operators
Prof. C. Trunk
Technical University of Ilmenau, Germany 

Abstract
​Presentation 
Video

06.01.2022, 6 pm (UTC+3)

Oversampling in symmetric, regular de Branges spaces
Prof. L.O. Silva
National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

23.12.2021, 6 pm (UTC+3)

Subordination principle for the space-time-fractional diffusion equations
Prof. Yuri Luchko
Berlin University of Applied Sciences and Technology, Germany

Abstract
​Presentation
Video

09.12.2021, 6 pm (UTC+3)

Inverse scattering for the half line matrix Schrödinger operator
Prof. Tuncay Aktosun
University of Texas at Arlington, USA

Abstract
​Presentation
Video

25.11.2021, 6 pm (UTC+3)

On Hardy-Type Inequalities as an intellectual adventure for 100 years
Prof. Lars-Erik Persson
UiT The Arctic University of Norway and Karlstad University, Sweden

Abstract
​Presentation
Video

11.11.2021, 6 pm (UTC+3)

Dirac-type operators and applications
Prof. Swanhild Bernstein
Technical University of Bergakademie Freiberg, Germany

Abstract
​Video

28.10.2021, 6 pm (UTC+3)

Riemann-Hilbert problem for a multiply connected domain and its applications to the effective properties of 2D random composites
Prof. Vladimir Mityushev
Cracow University of Technology, Poland

Abstract
​Presentation
Video

14.10.2021, 6 pm (UTC+3)

The Gelfand-Krein-Levitan problem and passive imaging
Prof. Roman Novikov
Centre de Mathématiques Appliquées, École Polytechnique, France

Abstract
​Presentation
Video

30.09.2021, 6 pm (UTC+3)

Sets of uniqueness for inframonogenic functions
Prof. Ricardo Abreu Blaya
Autonomous University of Guerrero, Mexico

Abstract
​Presentation
Video

16.09.2021, 6 pm (UTC+3)

Pseudo-holomorphic functions and Dirichlet problems on planar domains with rectifiable boundary
Prof. Laurent Baratchart
Inria Sophia Antipolis-Méditerranée Research Centre, France

Abstract
Video

02.09.2021, 6 pm (UTC+3)

Wiener algebras and trigonometric series in a coordinated fashion
Prof. Elijah Liflyand
Bar-Ilan University, Israel

Abstract
​Presentation
Video

22.07.2021, 6 pm (UTC+3)

Higher dimensional summability and Lebesgue points
Prof. Ferenc Weisz
Eotvos University, Hungary

Abstract
​Presentation
Video

08.07.2021, 6 pm (UTC+3)

Free boundary problems and Riemann-Hilbert problems on Riemann surfaces
Prof. Yuri Antipov
Louisiana State University, USA

Abstract
​Presentation
Video

24.06.2021, 6 pm (UTC+3)

Elliptic equations with degenerate weights
Prof. Lars Diening
Bielefeld University, Germany

Abstract
​Presentation
Video

10.06.2021, 6 pm (UTC+3)

On the regularity of characteristic functions
Prof. Winfried Sickel
Friedrich-Schiller-Universität Jena, Germany

Abstract
​Presentation
Video

27.05.2021, 6 pm (UTC+3)

Fewnomials in L1 and their geometry
Prof. Konstantin Dyakonov
ICREA & Universitat de Barcelona, Spain

Abstract
​Presentation
Video

13.05.2021, 6 pm (UTC+3)

Nonlinear Fourier Analysis
Prof. Maxim Zinchenko
University of New Mexico, USA

Abstract
Video

29.04.2021, 6 pm (UTC+3)

Nonharmonic pseudo-differential analysis
Prof. Michael Ruzhansky
Ghent University, Belgium

Abstract
​Presentation
Video

15.04.2021, 6 pm (UTC+3)

Hilbert-type inequalities with non-homogeneous kernel: another view
Prof. Tibor K. Pogány,
University of Rijeka, Croatia & Óbuda University, Hungary

Abstract
​Presentation
Video

01.04.2021, 6 pm (UTC+3)

On fractional Orlicz-Sobolev spaces
Prof. Lubos Pick,
Charles University, Czech Republic

Abstract
​Presentation
Video

18.03.2021, 6 pm (UTC+3)

A Sturm-Liouville equation on the crossroads of discrete and continuous hypercomplex analysis
Prof. Helmuth Malonek,
University of Aveiro, Portugal

Abstract
​Presentation
Video

04.03.2021, 6 pm (UTC+3)

Grand Lebesgue space for p=∞ and applications or a new life of a 36 years old result of Nikolay Karapetyants and Boris Rubin
Prof. Humberto Rafeiro,
United Arab Emirates University, UAE
and
Prof. Stefan Samko,
Algarve University, Portugal

Abstract
​Presentation
Video

18.02.2021, 6 pm (UTC+3)

Energy based modeling, simulation and optimization of multiphysics systems
Prof. Volker Mehrmann,
Technical University of Berlin, Germany

Abstract
​Presentation
Video

04.02.2021, 6 pm (UTC+3)

On the decay of spectral projections associated to Laplacians on certain Riemannian manifolds
Prof. Sundaram Thangavelu,
Indian Institute of Science, India

Abstract
​Presentation
Video

21.01.2021, 6 pm (UTC+3)

Kirchhoff Laplacians on metric graphs
Prof. Aleksey Kostenko,
University of Ljubljana, Slovenia & University of Vienna, Austria

Abstract
Presentation
Video

07.01.2021, 6 pm (UTC+3)

A lower estimate for weak-type Fourier multipliers
Prof. Alexei Karlovich,
NOVA University Lisbon, Lisbon, Portugal

Abstract
​Presentation
Video

24.12.2020, 6 pm (UTC+3)

Can one hear the heat of a body? Mathematics of some novel techniques of medical imaging
Prof. Peter Kuchment,
Texas A&M University, USA

Abstract
​Presentation
Video

10.12.2020, 6 pm (UTC+3)

Spectral properties of Dirichlet Laplacian in spiral-shaped regions
Prof. Pavel Exner,
Doppler Institute for Mathematical Physics and Applied Mathematics, Czech Republic

Abstract
Video

26.11.2020, 6 pm (UTC+3)

On an interior Calderon operator and a related Steklov eigenproblem for Maxwell's equations
Prof. Ioannis Stratis,
National and Kapodistrian University of Athens, Greece

Abstract
​Presentation
Video

12.11.2020, 6 pm (UTC+3)

Funk-Radon transforms
Prof. Mark Agranovsky,
Bar-Ilan University, Holon Institute of Technology, Israel

Abstract
​Presentation
Video

29.10.2020, 6 pm (UTC+3)

Dispersive estimates for Schrödinger equations
Prof. Ricardo Weder,
Institute of Research in Applied Mathematics and Systems, National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

15.10.2020, 6 pm (UTC+3)

Some results on the inverse spectral theory for the Sturm-Liouville operator on the line
Prof. Luca Zampogni
Department of Mathematics and Computer Science, University of Perugia, Italy

Abstract
​Presentation
Video

01.10.2020, 6 pm (UTC+3)

Some inequalities for fractional Laplacians
Prof. Alexander Nazarov
St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

17.09.2020, 6 pm (UTC+3)

Control and inverse problems for Krein's string
Prof. Sergei Avdonin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

03.09.2020, 5 pm (UTC+3)

Quantitative results on continuity of the spectral factorisation mapping
Prof. Eugene Shargorodsky
King's College London, United Kingdom

Abstract
​Presentation
Video

20.08.2020, 5 pm (UTC+3)

Revisiting Stampfli's "The norm of a derivation": Fifty years later
Prof. Ilya Spitkovsky
New York University Abu Dhabi, United Arab Emirates

Abstract
Video

06.08.2020, 5 pm (UTC+3)

Integrability properties of integral transforms via Morrey spaces
Prof. Natasha Samko
UiT The Arctic University of Norway, Norway

Abstract
​Presentation
Video

23.07.2020, 5 pm (UTC+3)

Norm inequalities for linear and multilinear singular integrals on weighted and variable exponent Hardy spaces
Prof. David Cruz-Uribe
The University of Alabama, USA

Abstract
​Presentation
Video

09.07.2020, 5 pm (UTC+3)

Fredholm property and essential spectrum of 3-D Dirac operators with regular and singular potentials
Prof. Vladimir Rabinovich
Instituto Politecnico Nacional, Mexico

Abstract
​Presentation
Video

25.06.2020, 5 pm (UTC+3)

The Banach Gelfand Triple and its role in Classical Fourier Analysis and Operator Theory
Prof. Hans Georg Feichtinger
Institute of Mathematics, University of Vienna, Austria

Abstract
​Presentation
Video

11.06.2020, 5 pm (UTC+3)

Reducible and irreducible Fermi surfaces for periodic operators
Prof. Stephen Shipman
Louisiana State University, Baton Rouge, USA

Abstract
​Presentation
Video

28.05.2020, 5 pm (UTC+3)

Inversion of the noisy Radon transform and Wavelet and Gabor frames on S^3
Prof. Uwe Kähler
CIDMA - Department of Mathematics, University of Aveiro, Aveiro, Portugal

Abstract
Presentation
Video

14.05.2020, 5 pm (UTC+3)

A series representation of integral kernels of the transformation operators and application to numerical solution of spectral problems
Prof. Sergii Torba
Mathematics department, CINVESTAV del IPN, Mexico

Abstract
Presentation
Video

 Regional Mathematical Center
 https://rmc.sfedu.ru/

 Institute of Mathematics, Mechanics
 and Computer Sciences
 http://www.mmcs.sfedu.ru/

 OTHA research network in
 Operator Theory and Harmonic Analysis
 http://msrn.sfedu.ru/ 

08.02.2024, 6 pm (UTC+3)

On algebras generated by integral operators with homogeneous kernels
Prof. O.G. Avsyankin
Southern Federal University, Russia

Abstract
​Video

25.01.2024, 6 pm (UTC+3)

Minimal commutant and double commutant property for analytic Toeplitz operators
Prof. F. León-Saavedra
University of Cádiz, Spain

Abstract
​Presentation
Video

11.01.2024, 6 pm (UTC+3)

On the norm of the Riesz projection from L^∞ to L^p
Prof. S. Konyagin
Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

28.12.2023, 6 pm (UTC+3)

On the Bishop-Phelps property
Prof. F.J. Garcia-Pacheco
University of Cadiz, Spain

Abstract
​Presentation
Video

14.12.2023, 6 pm (UTC+3)

Orthogonal polynomials. Fourier series in orthogonal polynomials. Trace formula and asymptotics of Forsythe determinant.
Prof. B. Osilenker
Moscow State University of Civil Engineering, Russia

Abstract
​Presentation
Video

30.11.2023, 6 pm (UTC+3)

Subordination principle, stochastic solutions and Feynman-Kac formulae for generalized time fractional evolution equations
Prof. Ya. Kinderknecht
University of Kassel, Germany

Abstract
​Presentation
Video

16.11.2023, 6 pm (UTC+3)

Bi-parameter Potential theory and some applications to holomorphic spaces
Prof. N. Arcozzi
University of Bologna, Italy

Abstract
​Video

02.11.2023, 6 pm (UTC+3)

On the theory of functions of omega-bounded type
Prof. A. Jerbashian
Institute of Mathematics, National Academy of Sciences of Armenia, Armenia

Abstract
​Presentation
Video

19.10.2023, 6 pm (UTC+3)

On direct and inverse Kolmogorov equations for purely jump-like Markov processes and their generalizations
Prof. A.N. Shiryaev
Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

05.10.2023, 6 pm (UTC+3)

The Landau Hamiltonian with delta-potentials supported on curves
Prof. J. Behrndt
Graz University of Technology, Austria

Abstract
​Presentation
Video

21.09.2023, 6 pm (UTC+3)

A Tale of Three Coauthors: Comparison of Ising Models
Prof. B. Simon
California Institute of Technology, USA

Abstract
​Presentation
Video

07.09.2023, 6 pm (UTC+3)

On Hitchin-Thorpe inequality for four-dimensional compact Ricci solitons
Prof. E. Ribeiro Jr.
Federal University of Ceará, Brazil

Abstract
​Presentation
Video

27.07.2023, 6 pm (UTC+3)

​​​​​​​Fixed-point theory and Greens functions for the solution of DEs: An iterative strategy
Prof. S. Khoury
American University of Sharjah, United Arab Emirates

Abstract
​Presentation
Video

13.07.2023, 6 pm (UTC+3)

​​​​​​​The Energy Spreading PONS Transform and its Applications
Prof. J. Byrnes
Prometheus Inc., USA

Abstract
​Presentation
Video

29.06.2023, 6 pm (UTC+3)

​​​​​​​Hilbert C*-module independence
Prof. M.S. Moslehian
Ferdowsi University of Mashhad, Iran

Abstract
​Video

15.06.2023, 6 pm (UTC+3)

​​​​​​​A survey on current results in Theory of Lieb-Thirring inequalities
Prof. A. Laptev
Imperial College London, UK

Abstract
​Presentation
Video

01.06.2023, 6 pm (UTC+3)

​​​​​​​Toeplitz operators and Bergman projections on weighted spaces of holomorphic functions
Prof. W. Lusky
University of Paderborn, Germany

Abstract
​Presentation
Video

18.05.2023, 6 pm (UTC+3)

​​​​​​​Formation of singularities of two-dimensional soliton equations represented by L,A,B-triples
Prof. I. Taimanov
Sobolev Institute of Mathematics, Russia, and Novosibirsk State University, Russia

Abstract
​Presentation
Video

04.05.2023, 6 pm (UTC+3)

​​​​​​​Superposition operators on spaces of analytic functions
Prof. D. Girela
University of Malaga, Spain

Abstract
​Presentation
Video

20.04.2023, 6 pm (UTC+3)

​​​​​​​Quasi-Bessel equations: existence and hyper-dimensionality
Prof. P. Dubovski
Stevens Institute of Technology, USA

Abstract
​Presentation
Video

06.04.2023, 6 pm (UTC+3)

​​​​​​​Partially holomorphic functions in several variables
Prof. M. Lawrence
Nazarbayev University, Kazakhstan

Abstract
​Presentation
Video

23.03.2023, 6 pm (UTC+3)

​​​​​​​A theory of reproducing Hardy and Bergman spaces in octonionic settings
Prof. S. Kraußhar
The University of Erfurt, Germany

Abstract
​Presentation
Video

09.03.2023, 6 pm (UTC+3)

On the sharp estimates for convolution operators with oscillatory kernel
Prof. I. A. Ikromov
Institute of Mathematics named after V.I. Romanovsky, Uzbekistan

Abstract
​Presentation
Video

23.02.2023, 6 pm (UTC+3)

Investigation of common properties of Lip and H^∞ functions (preliminary report)
Prof. R.M. Aron
Kent State University, USA

Abstract
​Presentation
Video

09.02.2023, 6 pm (UTC+3)

Toeplitz operators on quotient domains
Prof. E.K. Narayanan
Indian Institute of Science, India

Abstract
​Presentation
Video

26.01.2023, 6 pm (UTC+3)

Bianalytic polynomial approximations, Nevanlinna domains and univalent functions in model spaces
Prof. K. Fedorovskiy
Lomonosov Moscow State University, Russia, and Saint Petersburg State University, Russia

Abstract
​Presentation
Video

12.01.2023, 6 pm (UTC+3)

Multi-term fractional integro-differential equations in power growth function spaces
Prof. K.T. Vu.
University of West Georgia, USA

Abstract
​Presentation
Video

22.12.2022, 6 pm (UTC+3)

On spectral theory of metric graphs
Prof. P. Kurasov
Stockholm University, Sweden

Abstract
​Presentation
Video

08.12.2022, 6 pm (UTC+3)

Discrete spectrum of polynomially compact pseudodifferential operators and applications to the Neumann-Poincare operator in 3D elasticity
Prof. G. Rozenblum
Chalmers University of Technology, Sweden, The Euler International Mathematical Institute, Russia, and University of Science and Technology "Sirius", Russia

Abstract
​Presentation
Video

24.11.2022, 6 pm (UTC+3)

On solutions of a multi-phase Stefan-Riemann problem
Prof. E. Panov
Yaroslav-the-Wise Novgorod State University, Russia

Abstract
​Presentation
Video

10.11.2022, 6 pm (UTC+3)

Do biological species exist as mathematical solutions?
Prof. V. Vol'pert
Institut Camille Jordan, France, and Nikol'skii Mathematical Institute of Peoples' Friendship University, Russia

Abstract
​Presentation
Video

27.10.2022, 6 pm (UTC+3)

Extended Fractional Hypergeometric Function and Applications
Prof. P. Agarwal
Anand International College of Engineering, India

Abstract
​Presentation
Video

13.10.2022, 6 pm (UTC+3)

Distance between two subsets of a unit-volume convex body
Prof. A. Kanel-Belov
Bar-Ilan University, Department of Mathematics, Israel

Abstract
​Presentation
Video

29.09.2022, 6 pm (UTC+3)

On the theory of the subtrigonometric functions
Prof. X.-J. Yang
China University of Mining and Technology, China

Abstract
​Presentation
Video

15.09.2022, 6 pm (UTC+3)

Inverse Spectral Problems for Differential Operators
Prof. V. Yurko
Saratov State University, Russia

Abstract
​Presentation
Video

01.09.2022, 6 pm (UTC+3)

Norming constants of embedded bound states and bounded positon solutions of the Korteweg-de Vries equation
Prof. A. Rybkin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

21.07.2022, 6 pm (UTC+3)

To the Spectral Theory of Hausdorff Operators
Prof. A. Mirotin
Francisk Skorina Gomel State University, Belarus

Abstract
​Presentation
Video

07.07.2022, 6 pm (UTC+3)

Multivariate approximation and one problem of combinatorial number theory
Prof. V. Protasov
University of L'Aquila, Italy, and Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

23.06.2022, 6 pm (UTC+3)

A Simple Wiener-Hopf factorization method for pricing options with barriers in Levy-driven models
Prof. O. Kudryavtsev
Russian Customs Academy, Southern Federal University, Russia

Abstract
​Presentation
Video

09.06.2022, 6 pm (UTC+3)

Multiscale modeling of cardiovascular system
Prof. S. Simakov
Moscow Institute of Physics and Technology, Russia

Abstract
​Presentation
Video

26.05.2022, 6 pm (UTC+3)

Recovery singularities in quasi-linear biharmonic operator
Prof. V. Serov
University of Oulu, Finland 

Abstract
​Presentation
Video

12.05.2022, 6 pm (UTC+3)

Semiclassical Approximation with Compex Phases for Constructing Effective Plancherel-Rotach type asymptotics of 1-D and 2-D orthogonal polynomials
Prof. S. Dobrokhotov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Russia 

Abstract
​Presentation 
Video

28.04.2022, 6 pm (UTC+3)

Inverse spectral problem for the matrix Sturm-Liouville operator
Prof. N. Bondarenko
Samara National Research University, Saratov State University, Russia 

Abstract
​Presentation
Video

14.04.2022, 6 pm (UTC+3)

Mathematical problems in the theory of topological insulators
Prof. A. Sergeev
Steklov Mathematical Institute of RAS, Russia, and MSU Faculty of Mechanics and Mathematics, Russia 

Abstract
​Presentation
Video

31.03.2022, 6 pm (UTC+3)

An analogue of Young's inequality for convolutions for general Morrey-type spaces
Prof. V. Burenkov
S.M. Nikolskii Mathematical Institute, Peoples' Friendship University, Russia 

Abstract
​Presentation 
Video 

17.03.2022, 6 pm (UTC+3)

Characteristic Lie algebra of Klein-Gordon equation and higher symmetries
Prof. D. Millionschikov
MSU Faculty of Mechanics and Mathematics, Russia, and Gubkin University, National University of Oil and Gas, Russia

Abstract
​Presentation
Video

03.03.2022, 6 pm (UTC+3)

Nonlinear composition operators in generalized Morrey spaces
Prof. M. Lanza de Cristoforis
University of Padova, Italy

Abstract 
​Presentation
Video

17.02.2022, 6 pm (UTC+3)

Asymptotics of eigenvalues and eigenvectors of Toeplitz matrices
Prof. S. Grudsky
CINVESTAV, Mexico

Abstract
​Presentation 
Video 

03.02.2022, 6 pm (UTC+3)

Wavelet Approximation in Orlicz Spaces
Prof. M. Skopina
St. Petersburg State University, Russia, and Regional Mathematical Center SFedU, Russia

Abstract
​Presentation
Video

 20.01.2022, 6 pm (UTC+3)

Perturbations of periodic Sturm-Liouville operators
Prof. C. Trunk
Technical University of Ilmenau, Germany 

Abstract
​Presentation 
Video

06.01.2022, 6 pm (UTC+3)

Oversampling in symmetric, regular de Branges spaces
Prof. L.O. Silva
National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

23.12.2021, 6 pm (UTC+3)

Subordination principle for the space-time-fractional diffusion equations
Prof. Yuri Luchko
Berlin University of Applied Sciences and Technology, Germany

Abstract
​Presentation
Video

09.12.2021, 6 pm (UTC+3)

Inverse scattering for the half line matrix Schrödinger operator
Prof. Tuncay Aktosun
University of Texas at Arlington, USA

Abstract
​Presentation
Video

25.11.2021, 6 pm (UTC+3)

On Hardy-Type Inequalities as an intellectual adventure for 100 years
Prof. Lars-Erik Persson
UiT The Arctic University of Norway and Karlstad University, Sweden

Abstract
​Presentation
Video

11.11.2021, 6 pm (UTC+3)

Dirac-type operators and applications
Prof. Swanhild Bernstein
Technical University of Bergakademie Freiberg, Germany

Abstract
​Video

28.10.2021, 6 pm (UTC+3)

Riemann-Hilbert problem for a multiply connected domain and its applications to the effective properties of 2D random composites
Prof. Vladimir Mityushev
Cracow University of Technology, Poland

Abstract
​Presentation
Video

14.10.2021, 6 pm (UTC+3)

The Gelfand-Krein-Levitan problem and passive imaging
Prof. Roman Novikov
Centre de Mathématiques Appliquées, École Polytechnique, France

Abstract
​Presentation
Video

30.09.2021, 6 pm (UTC+3)

Sets of uniqueness for inframonogenic functions
Prof. Ricardo Abreu Blaya
Autonomous University of Guerrero, Mexico

Abstract
​Presentation
Video

16.09.2021, 6 pm (UTC+3)

Pseudo-holomorphic functions and Dirichlet problems on planar domains with rectifiable boundary
Prof. Laurent Baratchart
Inria Sophia Antipolis-Méditerranée Research Centre, France

Abstract
Video

02.09.2021, 6 pm (UTC+3)

Wiener algebras and trigonometric series in a coordinated fashion
Prof. Elijah Liflyand
Bar-Ilan University, Israel

Abstract
​Presentation
Video

22.07.2021, 6 pm (UTC+3)

Higher dimensional summability and Lebesgue points
Prof. Ferenc Weisz
Eotvos University, Hungary

Abstract
​Presentation
Video

08.07.2021, 6 pm (UTC+3)

Free boundary problems and Riemann-Hilbert problems on Riemann surfaces
Prof. Yuri Antipov
Louisiana State University, USA

Abstract
​Presentation
Video

24.06.2021, 6 pm (UTC+3)

Elliptic equations with degenerate weights
Prof. Lars Diening
Bielefeld University, Germany

Abstract
​Presentation
Video

10.06.2021, 6 pm (UTC+3)

On the regularity of characteristic functions
Prof. Winfried Sickel
Friedrich-Schiller-Universität Jena, Germany

Abstract
​Presentation
Video

27.05.2021, 6 pm (UTC+3)

Fewnomials in L1 and their geometry
Prof. Konstantin Dyakonov
ICREA & Universitat de Barcelona, Spain

Abstract
​Presentation
Video

13.05.2021, 6 pm (UTC+3)

Nonlinear Fourier Analysis
Prof. Maxim Zinchenko
University of New Mexico, USA

Abstract
Video

29.04.2021, 6 pm (UTC+3)

Nonharmonic pseudo-differential analysis
Prof. Michael Ruzhansky
Ghent University, Belgium

Abstract
​Presentation
Video

15.04.2021, 6 pm (UTC+3)

Hilbert-type inequalities with non-homogeneous kernel: another view
Prof. Tibor K. Pogány,
University of Rijeka, Croatia & Óbuda University, Hungary

Abstract
​Presentation
Video

01.04.2021, 6 pm (UTC+3)

On fractional Orlicz-Sobolev spaces
Prof. Lubos Pick,
Charles University, Czech Republic

Abstract
​Presentation
Video

18.03.2021, 6 pm (UTC+3)

A Sturm-Liouville equation on the crossroads of discrete and continuous hypercomplex analysis
Prof. Helmuth Malonek,
University of Aveiro, Portugal

Abstract
​Presentation
Video

04.03.2021, 6 pm (UTC+3)

Grand Lebesgue space for p=∞ and applications or a new life of a 36 years old result of Nikolay Karapetyants and Boris Rubin
Prof. Humberto Rafeiro,
United Arab Emirates University, UAE
and
Prof. Stefan Samko,
Algarve University, Portugal

Abstract
​Presentation
Video

18.02.2021, 6 pm (UTC+3)

Energy based modeling, simulation and optimization of multiphysics systems
Prof. Volker Mehrmann,
Technical University of Berlin, Germany

Abstract
​Presentation
Video

04.02.2021, 6 pm (UTC+3)

On the decay of spectral projections associated to Laplacians on certain Riemannian manifolds
Prof. Sundaram Thangavelu,
Indian Institute of Science, India

Abstract
​Presentation
Video

21.01.2021, 6 pm (UTC+3)

Kirchhoff Laplacians on metric graphs
Prof. Aleksey Kostenko,
University of Ljubljana, Slovenia & University of Vienna, Austria

Abstract
Presentation
Video

07.01.2021, 6 pm (UTC+3)

A lower estimate for weak-type Fourier multipliers
Prof. Alexei Karlovich,
NOVA University Lisbon, Lisbon, Portugal

Abstract
​Presentation
Video

24.12.2020, 6 pm (UTC+3)

Can one hear the heat of a body? Mathematics of some novel techniques of medical imaging
Prof. Peter Kuchment,
Texas A&M University, USA

Abstract
​Presentation
Video

10.12.2020, 6 pm (UTC+3)

Spectral properties of Dirichlet Laplacian in spiral-shaped regions
Prof. Pavel Exner,
Doppler Institute for Mathematical Physics and Applied Mathematics, Czech Republic

Abstract
Video

26.11.2020, 6 pm (UTC+3)

On an interior Calderon operator and a related Steklov eigenproblem for Maxwell's equations
Prof. Ioannis Stratis,
National and Kapodistrian University of Athens, Greece

Abstract
​Presentation
Video

12.11.2020, 6 pm (UTC+3)

Funk-Radon transforms
Prof. Mark Agranovsky,
Bar-Ilan University, Holon Institute of Technology, Israel

Abstract
​Presentation
Video

29.10.2020, 6 pm (UTC+3)

Dispersive estimates for Schrödinger equations
Prof. Ricardo Weder,
Institute of Research in Applied Mathematics and Systems, National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

15.10.2020, 6 pm (UTC+3)

Some results on the inverse spectral theory for the Sturm-Liouville operator on the line
Prof. Luca Zampogni
Department of Mathematics and Computer Science, University of Perugia, Italy

Abstract
​Presentation
Video

01.10.2020, 6 pm (UTC+3)

Some inequalities for fractional Laplacians
Prof. Alexander Nazarov
St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

17.09.2020, 6 pm (UTC+3)

Control and inverse problems for Krein's string
Prof. Sergei Avdonin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

03.09.2020, 5 pm (UTC+3)

Quantitative results on continuity of the spectral factorisation mapping
Prof. Eugene Shargorodsky
King's College London, United Kingdom

Abstract
​Presentation
Video

20.08.2020, 5 pm (UTC+3)

Revisiting Stampfli's "The norm of a derivation": Fifty years later
Prof. Ilya Spitkovsky
New York University Abu Dhabi, United Arab Emirates

Abstract
Video

06.08.2020, 5 pm (UTC+3)

Integrability properties of integral transforms via Morrey spaces
Prof. Natasha Samko
UiT The Arctic University of Norway, Norway

Abstract
​Presentation
Video

23.07.2020, 5 pm (UTC+3)

Norm inequalities for linear and multilinear singular integrals on weighted and variable exponent Hardy spaces
Prof. David Cruz-Uribe
The University of Alabama, USA

Abstract
​Presentation
Video

09.07.2020, 5 pm (UTC+3)

Fredholm property and essential spectrum of 3-D Dirac operators with regular and singular potentials
Prof. Vladimir Rabinovich
Instituto Politecnico Nacional, Mexico

Abstract
​Presentation
Video

25.06.2020, 5 pm (UTC+3)

The Banach Gelfand Triple and its role in Classical Fourier Analysis and Operator Theory
Prof. Hans Georg Feichtinger
Institute of Mathematics, University of Vienna, Austria

Abstract
​Presentation
Video

11.06.2020, 5 pm (UTC+3)

Reducible and irreducible Fermi surfaces for periodic operators
Prof. Stephen Shipman
Louisiana State University, Baton Rouge, USA

Abstract
​Presentation
Video

28.05.2020, 5 pm (UTC+3)

Inversion of the noisy Radon transform and Wavelet and Gabor frames on S^3
Prof. Uwe Kähler
CIDMA - Department of Mathematics, University of Aveiro, Aveiro, Portugal

Abstract
Presentation
Video

14.05.2020, 5 pm (UTC+3)

A series representation of integral kernels of the transformation operators and application to numerical solution of spectral problems
Prof. Sergii Torba
Mathematics department, CINVESTAV del IPN, Mexico

Abstract
Presentation
Video

 Regional Mathematical Center
 https://rmc.sfedu.ru/

 Institute of Mathematics, Mechanics
 and Computer Sciences
 http://www.mmcs.sfedu.ru/

 OTHA research network in
 Operator Theory and Harmonic Analysis
 http://msrn.sfedu.ru/ 

14.11.2024, 6 pm (UTC+3)

The generalized eigenvalue problem for the classical Euler differential equation and Meijer's G-function
Prof. F. Gesztesy
Baylor University, USA

Abstract
​Presentation
Video

31.10.2024, 6 pm (UTC+3)

Refinements of Berry-Esseen Inequalities in Terms of Lyapunov Coefficients
Prof. S. Bobkov
University of Minnesota, USA

Abstract
​Presentation
Video

17.10.2024, 6 pm (UTC+3)

Weighted Approximations by Sampling-type Series
Prof. T. Acar
Selcuk University, Turkey

Abstract
​Presentation
Video

03.10.2024, 6 pm (UTC+3)

Fractional calculus with respect to functions: historical overview, transmutation relations, and generalizations
Prof. A. Fernandez
Eastern Mediterranean University, Cypress

Abstract
​Presentation 
Video

19.09.2024, 6 pm (UTC+3)

Inverse problems for screens
Prof. L. Paivarinta
University of Helsinki, Finland

Abstract
​Presentation
Video

05.09.2024, 6 pm (UTC+3)

On the discrete eigenvalues of Schrödinger operators with complex potentials
Prof. S. Boegli
Durham University, UK

Abstract
​Presentation
Video

25.07.2024, 6 pm (UTC+3)

On various classes of hypercyclic and topologically transitive operators on Banach spaces
Prof. S. Ivkovic
Serbian Academy of Sciences and Arts, Serbia

Abstract
​Presentation
Video

11.07.2024, 6 pm (UTC+3)

Some remarks on the recent publications in the metric fixed point theory
Prof. E. Karapinar
China Medical University, Taiwan

Abstract
​Presentation
Video

27.06.2024, 6 pm (UTC+3)

Instability theory of stationary kink and anti-kink profiles for the sine-Gordon equation on a Y-junction graph
Prof. R. Plaza
National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

13.06.2024, 6 pm (UTC+3)

Well-posedness of the governing equations for quasi-linear viscoelastic model with pressure-dependent moduli in which both stress and strain appear linearly
Prof. V. Kovtunenko
Karl-Franzens University of Graz, Austria

Abstract
​Presentation
Video

30.05.2024, 6 pm (UTC+3)

Solvability and Mittag;Leffler stability analysis for time fractional partial differential equations
Prof. A. Debbouche
8 Mai 1945 - Guelma University, Algeria

Abstract

16.05.2024, 6 pm (UTC+3)

Separation of solutions and the attractivity of fractional-order positive linear delay systems with variable coefficients
Prof. T.T. Hoang
Vietnam Academy of Science and Technology, Vietnam

Abstract
​Presentation
Video

02.05.2024, 6 pm (UTC+3)

Gradient estimates for harmonic and generalized harmonic functions
Prof. M. Arsenovic
University of Belgrade, Serbia

Abstract
​Presentation
Video

18.04.2024, 6 pm (UTC+3)

The Cauchy problem for parabolic differential-difference equations: integral representations of solutions and their long-time behavior
Prof. A. Muravnik
Peoples' Friendship University, Russia

Abstract
​Video

04.04.2024, 6 pm (UTC+3)

On smoothness of generalized eigenfunctions for differential-difference operators
Prof. A. Skubachevskii
Peoples' Friendship University, Russia

Abstract
​Presentation
Video

21.03.2024, 6 pm (UTC+3)

Mathematical Models in Pure and Applied Mathematics
Prof. I. Andrianov
Aachen University, Germany

Abstract
​Presentation
Video

07.03.2024, 6 pm (UTC+3)

Semiclassical asymptotics on stratified manifolds
Prof. V.E. Nazaikinskii
Russian Academy of Sciences, Russia

Abstract
​Presentation
Video

22.02.2024, 6 pm (UTC+3)

How to calculate the roots of an arbitrary polynomial: Hadamard and Vandermonde determinants and Bernoulli - Euler - Lagrange - Aitken type numerical method for roots of polynomials
Prof. A.V. Lebedev
Belarusian State University, Belarus

Abstract
​Presentation
Video

08.02.2024, 6 pm (UTC+3)

On algebras generated by integral operators with homogeneous kernels
Prof. O.G. Avsyankin
Southern Federal University, Russia

Abstract
​Video

25.01.2024, 6 pm (UTC+3)

Minimal commutant and double commutant property for analytic Toeplitz operators
Prof. F. León-Saavedra
University of Cádiz, Spain

Abstract
​Presentation
Video

11.01.2024, 6 pm (UTC+3)

On the norm of the Riesz projection from L^∞ to L^p
Prof. S. Konyagin
Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

28.12.2023, 6 pm (UTC+3)

On the Bishop-Phelps property
Prof. F.J. Garcia-Pacheco
University of Cadiz, Spain

Abstract
​Presentation
Video

14.12.2023, 6 pm (UTC+3)

Orthogonal polynomials. Fourier series in orthogonal polynomials. Trace formula and asymptotics of Forsythe determinant.
Prof. B. Osilenker
Moscow State University of Civil Engineering, Russia

Abstract
​Presentation
Video

30.11.2023, 6 pm (UTC+3)

Subordination principle, stochastic solutions and Feynman-Kac formulae for generalized time fractional evolution equations
Prof. Ya. Kinderknecht
University of Kassel, Germany

Abstract
​Presentation
Video

16.11.2023, 6 pm (UTC+3)

Bi-parameter Potential theory and some applications to holomorphic spaces
Prof. N. Arcozzi
University of Bologna, Italy

Abstract
​Video

02.11.2023, 6 pm (UTC+3)

On the theory of functions of omega-bounded type
Prof. A. Jerbashian
Institute of Mathematics, National Academy of Sciences of Armenia, Armenia

Abstract
​Presentation
Video

19.10.2023, 6 pm (UTC+3)

On direct and inverse Kolmogorov equations for purely jump-like Markov processes and their generalizations
Prof. A.N. Shiryaev
Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

05.10.2023, 6 pm (UTC+3)

The Landau Hamiltonian with delta-potentials supported on curves
Prof. J. Behrndt
Graz University of Technology, Austria

Abstract
​Presentation
Video

21.09.2023, 6 pm (UTC+3)

A Tale of Three Coauthors: Comparison of Ising Models
Prof. B. Simon
California Institute of Technology, USA

Abstract
​Presentation
Video

07.09.2023, 6 pm (UTC+3)

On Hitchin-Thorpe inequality for four-dimensional compact Ricci solitons
Prof. E. Ribeiro Jr.
Federal University of Ceará, Brazil

Abstract
​Presentation
Video

27.07.2023, 6 pm (UTC+3)

​​​​​​​Fixed-point theory and Greens functions for the solution of DEs: An iterative strategy
Prof. S. Khoury
American University of Sharjah, United Arab Emirates

Abstract
​Presentation
Video

13.07.2023, 6 pm (UTC+3)

​​​​​​​The Energy Spreading PONS Transform and its Applications
Prof. J. Byrnes
Prometheus Inc., USA

Abstract
​Presentation
Video

29.06.2023, 6 pm (UTC+3)

​​​​​​​Hilbert C*-module independence
Prof. M.S. Moslehian
Ferdowsi University of Mashhad, Iran

Abstract
​Video

15.06.2023, 6 pm (UTC+3)

​​​​​​​A survey on current results in Theory of Lieb-Thirring inequalities
Prof. A. Laptev
Imperial College London, UK

Abstract
​Presentation
Video

01.06.2023, 6 pm (UTC+3)

​​​​​​​Toeplitz operators and Bergman projections on weighted spaces of holomorphic functions
Prof. W. Lusky
University of Paderborn, Germany

Abstract
​Presentation
Video

18.05.2023, 6 pm (UTC+3)

​​​​​​​Formation of singularities of two-dimensional soliton equations represented by L,A,B-triples
Prof. I. Taimanov
Sobolev Institute of Mathematics, Russia, and Novosibirsk State University, Russia

Abstract
​Presentation
Video

04.05.2023, 6 pm (UTC+3)

​​​​​​​Superposition operators on spaces of analytic functions
Prof. D. Girela
University of Malaga, Spain

Abstract
​Presentation
Video

20.04.2023, 6 pm (UTC+3)

​​​​​​​Quasi-Bessel equations: existence and hyper-dimensionality
Prof. P. Dubovski
Stevens Institute of Technology, USA

Abstract
​Presentation
Video

06.04.2023, 6 pm (UTC+3)

​​​​​​​Partially holomorphic functions in several variables
Prof. M. Lawrence
Nazarbayev University, Kazakhstan

Abstract
​Presentation
Video

23.03.2023, 6 pm (UTC+3)

​​​​​​​A theory of reproducing Hardy and Bergman spaces in octonionic settings
Prof. S. Kraußhar
The University of Erfurt, Germany

Abstract
​Presentation
Video

09.03.2023, 6 pm (UTC+3)

On the sharp estimates for convolution operators with oscillatory kernel
Prof. I. A. Ikromov
Institute of Mathematics named after V.I. Romanovsky, Uzbekistan

Abstract
​Presentation
Video

23.02.2023, 6 pm (UTC+3)

Investigation of common properties of Lip and H^∞ functions (preliminary report)
Prof. R.M. Aron
Kent State University, USA

Abstract
​Presentation
Video

09.02.2023, 6 pm (UTC+3)

Toeplitz operators on quotient domains
Prof. E.K. Narayanan
Indian Institute of Science, India

Abstract
​Presentation
Video

26.01.2023, 6 pm (UTC+3)

Bianalytic polynomial approximations, Nevanlinna domains and univalent functions in model spaces
Prof. K. Fedorovskiy
Lomonosov Moscow State University, Russia, and Saint Petersburg State University, Russia

Abstract
​Presentation
Video

12.01.2023, 6 pm (UTC+3)

Multi-term fractional integro-differential equations in power growth function spaces
Prof. K.T. Vu.
University of West Georgia, USA

Abstract
​Presentation
Video

22.12.2022, 6 pm (UTC+3)

On spectral theory of metric graphs
Prof. P. Kurasov
Stockholm University, Sweden

Abstract
​Presentation
Video

08.12.2022, 6 pm (UTC+3)

Discrete spectrum of polynomially compact pseudodifferential operators and applications to the Neumann-Poincare operator in 3D elasticity
Prof. G. Rozenblum
Chalmers University of Technology, Sweden, The Euler International Mathematical Institute, Russia, and University of Science and Technology "Sirius", Russia

Abstract
​Presentation
Video

24.11.2022, 6 pm (UTC+3)

On solutions of a multi-phase Stefan-Riemann problem
Prof. E. Panov
Yaroslav-the-Wise Novgorod State University, Russia

Abstract
​Presentation
Video

10.11.2022, 6 pm (UTC+3)

Do biological species exist as mathematical solutions?
Prof. V. Vol'pert
Institut Camille Jordan, France, and Nikol'skii Mathematical Institute of Peoples' Friendship University, Russia

Abstract
​Presentation
Video

27.10.2022, 6 pm (UTC+3)

Extended Fractional Hypergeometric Function and Applications
Prof. P. Agarwal
Anand International College of Engineering, India

Abstract
​Presentation
Video

13.10.2022, 6 pm (UTC+3)

Distance between two subsets of a unit-volume convex body
Prof. A. Kanel-Belov
Bar-Ilan University, Department of Mathematics, Israel

Abstract
​Presentation
Video

29.09.2022, 6 pm (UTC+3)

On the theory of the subtrigonometric functions
Prof. X.-J. Yang
China University of Mining and Technology, China

Abstract
​Presentation
Video

15.09.2022, 6 pm (UTC+3)

Inverse Spectral Problems for Differential Operators
Prof. V. Yurko
Saratov State University, Russia

Abstract
​Presentation
Video

01.09.2022, 6 pm (UTC+3)

Norming constants of embedded bound states and bounded positon solutions of the Korteweg-de Vries equation
Prof. A. Rybkin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

21.07.2022, 6 pm (UTC+3)

To the Spectral Theory of Hausdorff Operators
Prof. A. Mirotin
Francisk Skorina Gomel State University, Belarus

Abstract
​Presentation
Video

07.07.2022, 6 pm (UTC+3)

Multivariate approximation and one problem of combinatorial number theory
Prof. V. Protasov
University of L'Aquila, Italy, and Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

23.06.2022, 6 pm (UTC+3)

A Simple Wiener-Hopf factorization method for pricing options with barriers in Levy-driven models
Prof. O. Kudryavtsev
Russian Customs Academy, Southern Federal University, Russia

Abstract
​Presentation
Video

09.06.2022, 6 pm (UTC+3)

Multiscale modeling of cardiovascular system
Prof. S. Simakov
Moscow Institute of Physics and Technology, Russia

Abstract
​Presentation
Video

26.05.2022, 6 pm (UTC+3)

Recovery singularities in quasi-linear biharmonic operator
Prof. V. Serov
University of Oulu, Finland 

Abstract
​Presentation
Video

12.05.2022, 6 pm (UTC+3)

Semiclassical Approximation with Compex Phases for Constructing Effective Plancherel-Rotach type asymptotics of 1-D and 2-D orthogonal polynomials
Prof. S. Dobrokhotov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Russia 

Abstract
​Presentation 
Video

28.04.2022, 6 pm (UTC+3)

Inverse spectral problem for the matrix Sturm-Liouville operator
Prof. N. Bondarenko
Samara National Research University, Saratov State University, Russia 

Abstract
​Presentation
Video

14.04.2022, 6 pm (UTC+3)

Mathematical problems in the theory of topological insulators
Prof. A. Sergeev
Steklov Mathematical Institute of RAS, Russia, and MSU Faculty of Mechanics and Mathematics, Russia 

Abstract
​Presentation
Video

31.03.2022, 6 pm (UTC+3)

An analogue of Young's inequality for convolutions for general Morrey-type spaces
Prof. V. Burenkov
S.M. Nikolskii Mathematical Institute, Peoples' Friendship University, Russia 

Abstract
​Presentation 
Video 

17.03.2022, 6 pm (UTC+3)

Characteristic Lie algebra of Klein-Gordon equation and higher symmetries
Prof. D. Millionschikov
MSU Faculty of Mechanics and Mathematics, Russia, and Gubkin University, National University of Oil and Gas, Russia

Abstract
​Presentation
Video

03.03.2022, 6 pm (UTC+3)

Nonlinear composition operators in generalized Morrey spaces
Prof. M. Lanza de Cristoforis
University of Padova, Italy

Abstract 
​Presentation
Video

17.02.2022, 6 pm (UTC+3)

Asymptotics of eigenvalues and eigenvectors of Toeplitz matrices
Prof. S. Grudsky
CINVESTAV, Mexico

Abstract
​Presentation 
Video 

03.02.2022, 6 pm (UTC+3)

Wavelet Approximation in Orlicz Spaces
Prof. M. Skopina
St. Petersburg State University, Russia, and Regional Mathematical Center SFedU, Russia

Abstract
​Presentation
Video

 20.01.2022, 6 pm (UTC+3)

Perturbations of periodic Sturm-Liouville operators
Prof. C. Trunk
Technical University of Ilmenau, Germany 

Abstract
​Presentation 
Video

06.01.2022, 6 pm (UTC+3)

Oversampling in symmetric, regular de Branges spaces
Prof. L.O. Silva
National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

23.12.2021, 6 pm (UTC+3)

Subordination principle for the space-time-fractional diffusion equations
Prof. Yuri Luchko
Berlin University of Applied Sciences and Technology, Germany

Abstract
​Presentation
Video

09.12.2021, 6 pm (UTC+3)

Inverse scattering for the half line matrix Schrödinger operator
Prof. Tuncay Aktosun
University of Texas at Arlington, USA

Abstract
​Presentation
Video

25.11.2021, 6 pm (UTC+3)

On Hardy-Type Inequalities as an intellectual adventure for 100 years
Prof. Lars-Erik Persson
UiT The Arctic University of Norway and Karlstad University, Sweden

Abstract
​Presentation
Video

11.11.2021, 6 pm (UTC+3)

Dirac-type operators and applications
Prof. Swanhild Bernstein
Technical University of Bergakademie Freiberg, Germany

Abstract
​Video

28.10.2021, 6 pm (UTC+3)

Riemann-Hilbert problem for a multiply connected domain and its applications to the effective properties of 2D random composites
Prof. Vladimir Mityushev
Cracow University of Technology, Poland

Abstract
​Presentation
Video

14.10.2021, 6 pm (UTC+3)

The Gelfand-Krein-Levitan problem and passive imaging
Prof. Roman Novikov
Centre de Mathématiques Appliquées, École Polytechnique, France

Abstract
​Presentation
Video

30.09.2021, 6 pm (UTC+3)

Sets of uniqueness for inframonogenic functions
Prof. Ricardo Abreu Blaya
Autonomous University of Guerrero, Mexico

Abstract
​Presentation
Video

16.09.2021, 6 pm (UTC+3)

Pseudo-holomorphic functions and Dirichlet problems on planar domains with rectifiable boundary
Prof. Laurent Baratchart
Inria Sophia Antipolis-Méditerranée Research Centre, France

Abstract
Video

02.09.2021, 6 pm (UTC+3)

Wiener algebras and trigonometric series in a coordinated fashion
Prof. Elijah Liflyand
Bar-Ilan University, Israel

Abstract
​Presentation
Video

22.07.2021, 6 pm (UTC+3)

Higher dimensional summability and Lebesgue points
Prof. Ferenc Weisz
Eotvos University, Hungary

Abstract
​Presentation
Video

08.07.2021, 6 pm (UTC+3)

Free boundary problems and Riemann-Hilbert problems on Riemann surfaces
Prof. Yuri Antipov
Louisiana State University, USA

Abstract
​Presentation
Video

24.06.2021, 6 pm (UTC+3)

Elliptic equations with degenerate weights
Prof. Lars Diening
Bielefeld University, Germany

Abstract
​Presentation
Video

10.06.2021, 6 pm (UTC+3)

On the regularity of characteristic functions
Prof. Winfried Sickel
Friedrich-Schiller-Universität Jena, Germany

Abstract
​Presentation
Video

27.05.2021, 6 pm (UTC+3)

Fewnomials in L1 and their geometry
Prof. Konstantin Dyakonov
ICREA & Universitat de Barcelona, Spain

Abstract
​Presentation
Video

13.05.2021, 6 pm (UTC+3)

Nonlinear Fourier Analysis
Prof. Maxim Zinchenko
University of New Mexico, USA

Abstract
Video

29.04.2021, 6 pm (UTC+3)

Nonharmonic pseudo-differential analysis
Prof. Michael Ruzhansky
Ghent University, Belgium

Abstract
​Presentation
Video

15.04.2021, 6 pm (UTC+3)

Hilbert-type inequalities with non-homogeneous kernel: another view
Prof. Tibor K. Pogány,
University of Rijeka, Croatia & Óbuda University, Hungary

Abstract
​Presentation
Video

01.04.2021, 6 pm (UTC+3)

On fractional Orlicz-Sobolev spaces
Prof. Lubos Pick,
Charles University, Czech Republic

Abstract
​Presentation
Video

18.03.2021, 6 pm (UTC+3)

A Sturm-Liouville equation on the crossroads of discrete and continuous hypercomplex analysis
Prof. Helmuth Malonek,
University of Aveiro, Portugal

Abstract
​Presentation
Video

04.03.2021, 6 pm (UTC+3)

Grand Lebesgue space for p=∞ and applications or a new life of a 36 years old result of Nikolay Karapetyants and Boris Rubin
Prof. Humberto Rafeiro,
United Arab Emirates University, UAE
and
Prof. Stefan Samko,
Algarve University, Portugal

Abstract
​Presentation
Video

18.02.2021, 6 pm (UTC+3)

Energy based modeling, simulation and optimization of multiphysics systems
Prof. Volker Mehrmann,
Technical University of Berlin, Germany

Abstract
​Presentation
Video

04.02.2021, 6 pm (UTC+3)

On the decay of spectral projections associated to Laplacians on certain Riemannian manifolds
Prof. Sundaram Thangavelu,
Indian Institute of Science, India

Abstract
​Presentation
Video

21.01.2021, 6 pm (UTC+3)

Kirchhoff Laplacians on metric graphs
Prof. Aleksey Kostenko,
University of Ljubljana, Slovenia & University of Vienna, Austria

Abstract
Presentation
Video

07.01.2021, 6 pm (UTC+3)

A lower estimate for weak-type Fourier multipliers
Prof. Alexei Karlovich,
NOVA University Lisbon, Lisbon, Portugal

Abstract
​Presentation
Video

24.12.2020, 6 pm (UTC+3)

Can one hear the heat of a body? Mathematics of some novel techniques of medical imaging
Prof. Peter Kuchment,
Texas A&M University, USA

Abstract
​Presentation
Video

10.12.2020, 6 pm (UTC+3)

Spectral properties of Dirichlet Laplacian in spiral-shaped regions
Prof. Pavel Exner,
Doppler Institute for Mathematical Physics and Applied Mathematics, Czech Republic

Abstract
Video

26.11.2020, 6 pm (UTC+3)

On an interior Calderon operator and a related Steklov eigenproblem for Maxwell's equations
Prof. Ioannis Stratis,
National and Kapodistrian University of Athens, Greece

Abstract
​Presentation
Video

12.11.2020, 6 pm (UTC+3)

Funk-Radon transforms
Prof. Mark Agranovsky,
Bar-Ilan University, Holon Institute of Technology, Israel

Abstract
​Presentation
Video

29.10.2020, 6 pm (UTC+3)

Dispersive estimates for Schrödinger equations
Prof. Ricardo Weder,
Institute of Research in Applied Mathematics and Systems, National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

15.10.2020, 6 pm (UTC+3)

Some results on the inverse spectral theory for the Sturm-Liouville operator on the line
Prof. Luca Zampogni
Department of Mathematics and Computer Science, University of Perugia, Italy

Abstract
​Presentation
Video

01.10.2020, 6 pm (UTC+3)

Some inequalities for fractional Laplacians
Prof. Alexander Nazarov
St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

17.09.2020, 6 pm (UTC+3)

Control and inverse problems for Krein's string
Prof. Sergei Avdonin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

03.09.2020, 5 pm (UTC+3)

Quantitative results on continuity of the spectral factorisation mapping
Prof. Eugene Shargorodsky
King's College London, United Kingdom

Abstract
​Presentation
Video

20.08.2020, 5 pm (UTC+3)

Revisiting Stampfli's "The norm of a derivation": Fifty years later
Prof. Ilya Spitkovsky
New York University Abu Dhabi, United Arab Emirates

Abstract
Video

06.08.2020, 5 pm (UTC+3)

Integrability properties of integral transforms via Morrey spaces
Prof. Natasha Samko
UiT The Arctic University of Norway, Norway

Abstract
​Presentation
Video

23.07.2020, 5 pm (UTC+3)

Norm inequalities for linear and multilinear singular integrals on weighted and variable exponent Hardy spaces
Prof. David Cruz-Uribe
The University of Alabama, USA

Abstract
​Presentation
Video

09.07.2020, 5 pm (UTC+3)

Fredholm property and essential spectrum of 3-D Dirac operators with regular and singular potentials
Prof. Vladimir Rabinovich
Instituto Politecnico Nacional, Mexico

Abstract
​Presentation
Video

25.06.2020, 5 pm (UTC+3)

The Banach Gelfand Triple and its role in Classical Fourier Analysis and Operator Theory
Prof. Hans Georg Feichtinger
Institute of Mathematics, University of Vienna, Austria

Abstract
​Presentation
Video

11.06.2020, 5 pm (UTC+3)

Reducible and irreducible Fermi surfaces for periodic operators
Prof. Stephen Shipman
Louisiana State University, Baton Rouge, USA

Abstract
​Presentation
Video

28.05.2020, 5 pm (UTC+3)

Inversion of the noisy Radon transform and Wavelet and Gabor frames on S^3
Prof. Uwe Kähler
CIDMA - Department of Mathematics, University of Aveiro, Aveiro, Portugal

Abstract
Presentation
Video

14.05.2020, 5 pm (UTC+3)

A series representation of integral kernels of the transformation operators and application to numerical solution of spectral problems
Prof. Sergii Torba
Mathematics department, CINVESTAV del IPN, Mexico

Abstract
Presentation
Video

 Regional Mathematical Center
 https://rmc.sfedu.ru/

 Institute of Mathematics, Mechanics
 and Computer Sciences
 http://www.mmcs.sfedu.ru/

 OTHA research network in
 Operator Theory and Harmonic Analysis
 http://msrn.sfedu.ru/ 

08.02.2024, 6 pm (UTC+3)

On algebras generated by integral operators with homogeneous kernels
Prof. O.G. Avsyankin
Southern Federal University, Russia

Abstract
​Video

25.01.2024, 6 pm (UTC+3)

Minimal commutant and double commutant property for analytic Toeplitz operators
Prof. F. León-Saavedra
University of Cádiz, Spain

Abstract
​Presentation
Video

11.01.2024, 6 pm (UTC+3)

On the norm of the Riesz projection from L^∞ to L^p
Prof. S. Konyagin
Lomonosov Moscow State University, Russia

Abstract
​Presentation
Video

28.12.2023, 6 pm (UTC+3)

On the Bishop-Phelps property
Prof. F.J. Garcia-Pacheco
University of Cadiz, Spain

Abstract
​Presentation
Video

14.12.2023, 6 pm (UTC+3)

Orthogonal polynomials. Fourier series in orthogonal polynomials. Trace formula and asymptotics of Forsythe determinant.
Prof. B. Osilenker
Moscow State University of Civil Engineering, Russia

Abstract
​Presentation
Video

30.11.2023, 6 pm (UTC+3)

Subordination principle, stochastic solutions and Feynman-Kac formulae for generalized time fractional evolution equations
Prof. Ya. Kinderknecht
University of Kassel, Germany

Abstract
​Presentation
Video

16.11.2023, 6 pm (UTC+3)

Bi-parameter Potential theory and some applications to holomorphic spaces
Prof. N. Arcozzi
University of Bologna, Italy

Abstract
​Video

02.11.2023, 6 pm (UTC+3)

On the theory of functions of omega-bounded type
Prof. A. Jerbashian
Institute of Mathematics, National Academy of Sciences of Armenia, Armenia

Abstract
​Presentation
Video

19.10.2023, 6 pm (UTC+3)

On direct and inverse Kolmogorov equations for purely jump-like Markov processes and their generalizations
Prof. A.N. Shiryaev
Steklov Mathematical Institute of RAS, Russia

Abstract
​Presentation
Video

05.10.2023, 6 pm (UTC+3)

The Landau Hamiltonian with delta-potentials supported on curves
Prof. J. Behrndt
Graz University of Technology, Austria

Abstract
​Presentation
Video

21.09.2023, 6 pm (UTC+3)

A Tale of Three Coauthors: Comparison of Ising Models
Prof. B. Simon
California Institute of Technology, USA

Abstract
​Presentation
Video

07.09.2023, 6 pm (UTC+3)

On Hitchin-Thorpe inequality for four-dimensional compact Ricci solitons
Prof. E. Ribeiro Jr.
Federal University of Ceará, Brazil

Abstract
​Presentation
Video

27.07.2023, 6 pm (UTC+3)

​​​​​​​Fixed-point theory and Greens functions for the solution of DEs: An iterative strategy
Prof. S. Khoury
American University of Sharjah, United Arab Emirates

Abstract
​Presentation
Video

13.07.2023, 6 pm (UTC+3)

​​​​​​​The Energy Spreading PONS Transform and its Applications
Prof. J. Byrnes
Prometheus Inc., USA

Abstract
​Presentation
Video

29.06.2023, 6 pm (UTC+3)

​​​​​​​Hilbert C*-module independence
Prof. M.S. Moslehian
Ferdowsi University of Mashhad, Iran

Abstract
​Video

15.06.2023, 6 pm (UTC+3)

​​​​​​​A survey on current results in Theory of Lieb-Thirring inequalities
Prof. A. Laptev
Imperial College London, UK

Abstract
​Presentation
Video

01.06.2023, 6 pm (UTC+3)

​​​​​​​Toeplitz operators and Bergman projections on weighted spaces of holomorphic functions
Prof. W. Lusky
University of Paderborn, Germany

Abstract
​Presentation
Video

18.05.2023, 6 pm (UTC+3)

​​​​​​​Formation of singularities of two-dimensional soliton equations represented by L,A,B-triples
Prof. I. Taimanov
Sobolev Institute of Mathematics, Russia, and Novosibirsk State University, Russia

Abstract
​Presentation
Video

04.05.2023, 6 pm (UTC+3)

​​​​​​​Superposition operators on spaces of analytic functions
Prof. D. Girela
University of Malaga, Spain

Abstract
​Presentation
Video

20.04.2023, 6 pm (UTC+3)

​​​​​​​Quasi-Bessel equations: existence and hyper-dimensionality
Prof. P. Dubovski
Stevens Institute of Technology, USA

Abstract
​Presentation
Video

06.04.2023, 6 pm (UTC+3)

​​​​​​​Partially holomorphic functions in several variables
Prof. M. Lawrence
Nazarbayev University, Kazakhstan

Abstract
​Presentation
Video

23.03.2023, 6 pm (UTC+3)

​​​​​​​A theory of reproducing Hardy and Bergman spaces in octonionic settings
Prof. S. Kraußhar
The University of Erfurt, Germany

Abstract
​Presentation
Video

09.03.2023, 6 pm (UTC+3)

On the sharp estimates for convolution operators with oscillatory kernel
Prof. I. A. Ikromov
Institute of Mathematics named after V.I. Romanovsky, Uzbekistan

Abstract
​Presentation
Video

23.02.2023, 6 pm (UTC+3)

Investigation of common properties of Lip and H^∞ functions (preliminary report)
Prof. R.M. Aron
Kent State University, USA

Abstract
​Presentation
Video

09.02.2023, 6 pm (UTC+3)

Toeplitz operators on quotient domains
Prof. E.K. Narayanan
Indian Institute of Science, India

Abstract
​Presentation
Video

26.01.2023, 6 pm (UTC+3)

Bianalytic polynomial approximations, Nevanlinna domains and univalent functions in model spaces
Prof. K. Fedorovskiy
Lomonosov Moscow State University, Russia, and Saint Petersburg State University, Russia

Abstract
​Presentation
Video

12.01.2023, 6 pm (UTC+3)

Multi-term fractional integro-differential equations in power growth function spaces
Prof. K.T. Vu.
University of West Georgia, USA

Abstract
​Presentation
Video

22.12.2022, 6 pm (UTC+3)

On spectral theory of metric graphs
Prof. P. Kurasov
Stockholm University, Sweden

Abstract
​Presentation
Video

08.12.2022, 6 pm (UTC+3)

Discrete spectrum of polynomially compact pseudodifferential operators and applications to the Neumann-Poincare operator in 3D elasticity
Prof. G. Rozenblum
Chalmers University of Technology, Sweden, The Euler International Mathematical Institute, Russia, and University of Science and Technology "Sirius", Russia

Abstract
​Presentation
Video

24.11.2022, 6 pm (UTC+3)

On solutions of a multi-phase Stefan-Riemann problem
Prof. E. Panov
Yaroslav-the-Wise Novgorod State University, Russia

Abstract
​Presentation
Video

10.11.2022, 6 pm (UTC+3)

Do biological species exist as mathematical solutions?
Prof. V. Vol'pert
Institut Camille Jordan, France, and Nikol'skii Mathematical Institute of Peoples' Friendship University, Russia

Abstract
​Presentation
Video

27.10.2022, 6 pm (UTC+3)

Extended Fractional Hypergeometric Function and Applications
Prof. P. Agarwal
Anand International College of Engineering, India

Abstract
​Presentation
Video

13.10.2022, 6 pm (UTC+3)

Distance between two subsets of a unit-volume convex body
Prof. A. Kanel-Belov
Bar-Ilan University, Department of Mathematics, Israel

Abstract
​Presentation
Video

29.09.2022, 6 pm (UTC+3)

On the theory of the subtrigonometric functions
Prof. X.-J. Yang
China University of Mining and Technology, China

Abstract
​Presentation
Video

15.09.2022, 6 pm (UTC+3)

Inverse Spectral Problems for Differential Operators
Prof. V. Yurko
Saratov State University, Russia

Abstract
​Presentation
Video

01.09.2022, 6 pm (UTC+3)

Norming constants of embedded bound states and bounded positon solutions of the Korteweg-de Vries equation
Prof. A. Rybkin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

21.07.2022, 6 pm (UTC+3)

To the Spectral Theory of Hausdorff Operators
Prof. A. Mirotin
Francisk Skorina Gomel State University, Belarus

Abstract
​Presentation
Video

07.07.2022, 6 pm (UTC+3)

Multivariate approximation and one problem of combinatorial number theory
Prof. V. Protasov
University of L'Aquila, Italy, and Lomonosov Moscow State University, Russia

Abstract
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23.06.2022, 6 pm (UTC+3)

A Simple Wiener-Hopf factorization method for pricing options with barriers in Levy-driven models
Prof. O. Kudryavtsev
Russian Customs Academy, Southern Federal University, Russia

Abstract
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09.06.2022, 6 pm (UTC+3)

Multiscale modeling of cardiovascular system
Prof. S. Simakov
Moscow Institute of Physics and Technology, Russia

Abstract
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26.05.2022, 6 pm (UTC+3)

Recovery singularities in quasi-linear biharmonic operator
Prof. V. Serov
University of Oulu, Finland 

Abstract
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12.05.2022, 6 pm (UTC+3)

Semiclassical Approximation with Compex Phases for Constructing Effective Plancherel-Rotach type asymptotics of 1-D and 2-D orthogonal polynomials
Prof. S. Dobrokhotov
Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences, Russia 

Abstract
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28.04.2022, 6 pm (UTC+3)

Inverse spectral problem for the matrix Sturm-Liouville operator
Prof. N. Bondarenko
Samara National Research University, Saratov State University, Russia 

Abstract
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14.04.2022, 6 pm (UTC+3)

Mathematical problems in the theory of topological insulators
Prof. A. Sergeev
Steklov Mathematical Institute of RAS, Russia, and MSU Faculty of Mechanics and Mathematics, Russia 

Abstract
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31.03.2022, 6 pm (UTC+3)

An analogue of Young's inequality for convolutions for general Morrey-type spaces
Prof. V. Burenkov
S.M. Nikolskii Mathematical Institute, Peoples' Friendship University, Russia 

Abstract
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17.03.2022, 6 pm (UTC+3)

Characteristic Lie algebra of Klein-Gordon equation and higher symmetries
Prof. D. Millionschikov
MSU Faculty of Mechanics and Mathematics, Russia, and Gubkin University, National University of Oil and Gas, Russia

Abstract
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03.03.2022, 6 pm (UTC+3)

Nonlinear composition operators in generalized Morrey spaces
Prof. M. Lanza de Cristoforis
University of Padova, Italy

Abstract 
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17.02.2022, 6 pm (UTC+3)

Asymptotics of eigenvalues and eigenvectors of Toeplitz matrices
Prof. S. Grudsky
CINVESTAV, Mexico

Abstract
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03.02.2022, 6 pm (UTC+3)

Wavelet Approximation in Orlicz Spaces
Prof. M. Skopina
St. Petersburg State University, Russia, and Regional Mathematical Center SFedU, Russia

Abstract
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 20.01.2022, 6 pm (UTC+3)

Perturbations of periodic Sturm-Liouville operators
Prof. C. Trunk
Technical University of Ilmenau, Germany 

Abstract
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06.01.2022, 6 pm (UTC+3)

Oversampling in symmetric, regular de Branges spaces
Prof. L.O. Silva
National Autonomous University of Mexico, Mexico

Abstract
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23.12.2021, 6 pm (UTC+3)

Subordination principle for the space-time-fractional diffusion equations
Prof. Yuri Luchko
Berlin University of Applied Sciences and Technology, Germany

Abstract
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09.12.2021, 6 pm (UTC+3)

Inverse scattering for the half line matrix Schrödinger operator
Prof. Tuncay Aktosun
University of Texas at Arlington, USA

Abstract
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25.11.2021, 6 pm (UTC+3)

On Hardy-Type Inequalities as an intellectual adventure for 100 years
Prof. Lars-Erik Persson
UiT The Arctic University of Norway and Karlstad University, Sweden

Abstract
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11.11.2021, 6 pm (UTC+3)

Dirac-type operators and applications
Prof. Swanhild Bernstein
Technical University of Bergakademie Freiberg, Germany

Abstract
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28.10.2021, 6 pm (UTC+3)

Riemann-Hilbert problem for a multiply connected domain and its applications to the effective properties of 2D random composites
Prof. Vladimir Mityushev
Cracow University of Technology, Poland

Abstract
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14.10.2021, 6 pm (UTC+3)

The Gelfand-Krein-Levitan problem and passive imaging
Prof. Roman Novikov
Centre de Mathématiques Appliquées, École Polytechnique, France

Abstract
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30.09.2021, 6 pm (UTC+3)

Sets of uniqueness for inframonogenic functions
Prof. Ricardo Abreu Blaya
Autonomous University of Guerrero, Mexico

Abstract
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Video

16.09.2021, 6 pm (UTC+3)

Pseudo-holomorphic functions and Dirichlet problems on planar domains with rectifiable boundary
Prof. Laurent Baratchart
Inria Sophia Antipolis-Méditerranée Research Centre, France

Abstract
Video

02.09.2021, 6 pm (UTC+3)

Wiener algebras and trigonometric series in a coordinated fashion
Prof. Elijah Liflyand
Bar-Ilan University, Israel

Abstract
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22.07.2021, 6 pm (UTC+3)

Higher dimensional summability and Lebesgue points
Prof. Ferenc Weisz
Eotvos University, Hungary

Abstract
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08.07.2021, 6 pm (UTC+3)

Free boundary problems and Riemann-Hilbert problems on Riemann surfaces
Prof. Yuri Antipov
Louisiana State University, USA

Abstract
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Video

24.06.2021, 6 pm (UTC+3)

Elliptic equations with degenerate weights
Prof. Lars Diening
Bielefeld University, Germany

Abstract
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Video

10.06.2021, 6 pm (UTC+3)

On the regularity of characteristic functions
Prof. Winfried Sickel
Friedrich-Schiller-Universität Jena, Germany

Abstract
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Video

27.05.2021, 6 pm (UTC+3)

Fewnomials in L1 and their geometry
Prof. Konstantin Dyakonov
ICREA & Universitat de Barcelona, Spain

Abstract
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Video

13.05.2021, 6 pm (UTC+3)

Nonlinear Fourier Analysis
Prof. Maxim Zinchenko
University of New Mexico, USA

Abstract
Video

29.04.2021, 6 pm (UTC+3)

Nonharmonic pseudo-differential analysis
Prof. Michael Ruzhansky
Ghent University, Belgium

Abstract
​Presentation
Video

15.04.2021, 6 pm (UTC+3)

Hilbert-type inequalities with non-homogeneous kernel: another view
Prof. Tibor K. Pogány,
University of Rijeka, Croatia & Óbuda University, Hungary

Abstract
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01.04.2021, 6 pm (UTC+3)

On fractional Orlicz-Sobolev spaces
Prof. Lubos Pick,
Charles University, Czech Republic

Abstract
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18.03.2021, 6 pm (UTC+3)

A Sturm-Liouville equation on the crossroads of discrete and continuous hypercomplex analysis
Prof. Helmuth Malonek,
University of Aveiro, Portugal

Abstract
​Presentation
Video

04.03.2021, 6 pm (UTC+3)

Grand Lebesgue space for p=∞ and applications or a new life of a 36 years old result of Nikolay Karapetyants and Boris Rubin
Prof. Humberto Rafeiro,
United Arab Emirates University, UAE
and
Prof. Stefan Samko,
Algarve University, Portugal

Abstract
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Video

18.02.2021, 6 pm (UTC+3)

Energy based modeling, simulation and optimization of multiphysics systems
Prof. Volker Mehrmann,
Technical University of Berlin, Germany

Abstract
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Video

04.02.2021, 6 pm (UTC+3)

On the decay of spectral projections associated to Laplacians on certain Riemannian manifolds
Prof. Sundaram Thangavelu,
Indian Institute of Science, India

Abstract
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Video

21.01.2021, 6 pm (UTC+3)

Kirchhoff Laplacians on metric graphs
Prof. Aleksey Kostenko,
University of Ljubljana, Slovenia & University of Vienna, Austria

Abstract
Presentation
Video

07.01.2021, 6 pm (UTC+3)

A lower estimate for weak-type Fourier multipliers
Prof. Alexei Karlovich,
NOVA University Lisbon, Lisbon, Portugal

Abstract
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Video

24.12.2020, 6 pm (UTC+3)

Can one hear the heat of a body? Mathematics of some novel techniques of medical imaging
Prof. Peter Kuchment,
Texas A&M University, USA

Abstract
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Video

10.12.2020, 6 pm (UTC+3)

Spectral properties of Dirichlet Laplacian in spiral-shaped regions
Prof. Pavel Exner,
Doppler Institute for Mathematical Physics and Applied Mathematics, Czech Republic

Abstract
Video

26.11.2020, 6 pm (UTC+3)

On an interior Calderon operator and a related Steklov eigenproblem for Maxwell's equations
Prof. Ioannis Stratis,
National and Kapodistrian University of Athens, Greece

Abstract
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12.11.2020, 6 pm (UTC+3)

Funk-Radon transforms
Prof. Mark Agranovsky,
Bar-Ilan University, Holon Institute of Technology, Israel

Abstract
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29.10.2020, 6 pm (UTC+3)

Dispersive estimates for Schrödinger equations
Prof. Ricardo Weder,
Institute of Research in Applied Mathematics and Systems, National Autonomous University of Mexico, Mexico

Abstract
​Presentation
Video

15.10.2020, 6 pm (UTC+3)

Some results on the inverse spectral theory for the Sturm-Liouville operator on the line
Prof. Luca Zampogni
Department of Mathematics and Computer Science, University of Perugia, Italy

Abstract
​Presentation
Video

01.10.2020, 6 pm (UTC+3)

Some inequalities for fractional Laplacians
Prof. Alexander Nazarov
St. Petersburg State University and St. Petersburg Department of Steklov Mathematical Institute of RAS, Russia

Abstract
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17.09.2020, 6 pm (UTC+3)

Control and inverse problems for Krein's string
Prof. Sergei Avdonin
University of Alaska Fairbanks, USA

Abstract
​Presentation
Video

03.09.2020, 5 pm (UTC+3)

Quantitative results on continuity of the spectral factorisation mapping
Prof. Eugene Shargorodsky
King's College London, United Kingdom

Abstract
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Video

20.08.2020, 5 pm (UTC+3)

Revisiting Stampfli's "The norm of a derivation": Fifty years later
Prof. Ilya Spitkovsky
New York University Abu Dhabi, United Arab Emirates

Abstract
Video

06.08.2020, 5 pm (UTC+3)

Integrability properties of integral transforms via Morrey spaces
Prof. Natasha Samko
UiT The Arctic University of Norway, Norway

Abstract
​Presentation
Video

23.07.2020, 5 pm (UTC+3)

Norm inequalities for linear and multilinear singular integrals on weighted and variable exponent Hardy spaces
Prof. David Cruz-Uribe
The University of Alabama, USA

Abstract
​Presentation
Video

09.07.2020, 5 pm (UTC+3)

Fredholm property and essential spectrum of 3-D Dirac operators with regular and singular potentials
Prof. Vladimir Rabinovich
Instituto Politecnico Nacional, Mexico

Abstract
​Presentation
Video

25.06.2020, 5 pm (UTC+3)

The Banach Gelfand Triple and its role in Classical Fourier Analysis and Operator Theory
Prof. Hans Georg Feichtinger
Institute of Mathematics, University of Vienna, Austria

Abstract
​Presentation
Video

11.06.2020, 5 pm (UTC+3)

Reducible and irreducible Fermi surfaces for periodic operators
Prof. Stephen Shipman
Louisiana State University, Baton Rouge, USA

Abstract
​Presentation
Video

28.05.2020, 5 pm (UTC+3)

Inversion of the noisy Radon transform and Wavelet and Gabor frames on S^3
Prof. Uwe Kähler
CIDMA - Department of Mathematics, University of Aveiro, Aveiro, Portugal

Abstract
Presentation
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14.05.2020, 5 pm (UTC+3)

A series representation of integral kernels of the transformation operators and application to numerical solution of spectral problems
Prof. Sergii Torba
Mathematics department, CINVESTAV del IPN, Mexico

Abstract
Presentation
Video