Artsakh State University Dean of the Faculty of Physics and Mathematics

## Fields of Interests:

- Multiparameter Spectral Theory, Matrix Theory, Dirac's two-parameter Spectral Problem

Scientific secretary of the Institute of Mathematics

## Fields of Interests:

- Orthogonal systems, Universal series

Associate Prof., Faculty of Mathematics, Yerevan State University

## Fields of Interests:

- Muntz system, Orthogonal polynomials, Legandre quasipolynomials in Muntz system, Fourier series by Legandre quasipolynomials

Associate professor, Department of Differential Equations, Faculty of Mathematics and Mechanics, Yerevan State University

## Fields of Interests:

- Ordinary and Partial Differential Equations, Spectral Theory of Linear Operators, Sobolev Spaces, Degenerate Equations, Pseudo-Differential-Operators on Singular Manifolds