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/ 

09.02.2023, 6 pm (UTC+3)

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

Abstract
​Presentation (to be later)
Video (to be later)

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 (to be later)
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