The original file was a draft of a letter of reference, later it was edited and renamed.

Yu. N. Demkov seminars at the Department of Quantum Mechanics of SPB State University

A. Sergeev was a student of Leningrad State University specialized in quantum mechanics from 1978 till 1980 and a participant of the seminars on the Department of Quantum Mechanics from 1980 till recent years.

A. S. past achievements represent the development of original mathematical methods in quantum mechanics and atomic physics. Many publications that are of interest for specialists in physics and mathematics were reported at SPBSU seminars.

A. S. has various research ideas and he is actively working now on their realization to achieve further contributions in the area of theoretical physics.

See also Unpublished report for Yu. N. Demkov (in Russian).