Ismailov Migdad Imdadovich Russia Baku State University, Azerbaijan, AZ-1073/1, Baku, Z. Khalilov st., 23 Candidate of physico-mathematical sciencesmiqdadismailov1@rambler.ru Author's articles On spectrum of some classes of matrix operators On Spectral Property of Matrix Operators in Banach Space Hilbert Generalizations b-Bessel Systems
