Doan Cong Dinh is a PhD lecturer at Hanoi University of Science and Technology, Vietnam. Author of more than 30 scientific publications in the field of real and complex analysis, operator theory, differential equations, etc.

On May 21, Prof. Doan gave a lecture on the relationship between normalized systems of functions and transformation operators. The theory of normalized systems of functions with respect to a partial differential operator, developed by Professor Karachik, is an effective tool for constructing solutions to linear partial differential equations with constant coefficients. In this lecture, it was shown how this theory can be applied in quaternion analysis to construct transformation operators. 

The seminar "Seminar on Analysis, Differential Equations and Mathematical Physics" was attended by more than thirty mathematicians - specialists from the world's leading scientific and educational centers in Russia and other countries, including graduate students and students of the SFedU Institute of Mathematics, Mechanics and Computer Science and young scientists.

Online scientific seminar of the Regional Scientific and Educational Mathematical Center (https://rmc.sfedu.ru /) it is held regularly every two weeks, announcements of new seminars and videos of previous seminars are available on the website http://msrn.sfedu.ru/sl . The seminar features leading researchers from around the world whose research interests are related to analysis, differential equations, and mathematical physics. The scientific seminar of the mathematical center is open, everyone can take part in it.