85-th anniversary of professor Vladimir Nikolaevich Bezverkhnii

I. V. Dobrynina^a, N. M. Dobrovol'skii^b, I. Yu. Rebrova^b, E. V. Manokhin^c, E. S. Logacheva<sup>d

a</sup> Moscow Technical University of Communications and Informatics (Moscow)
^b Tula State Lev Tolstoy Pedagogical University (Tula)
^c Financial University under the Government of the Russian Federation (Tula Branch) (Tula)
^d Education center 38 (Chemical Lyceum) (Tula)

Abstract: This article examines the scientific and pedagogical activities of Professor, Doctor of Physico-Mathematical Sciences Vladimir Nikolaevich Bezverkhnii, who made a significant contribution to the research of algorithmic problems of the theory of groups and semigroups.
The main periods of the famous scientist's life are highlighted.
V. N. Bezverkhnii worked for a long time at Tula State Lev Tolstoy Pedagogical University, led a scientific seminar on algorithmic problems of the theory of groups and semigroups and a postgraduate course in combinatorial group theory.
Continuing the work of Professor M. D. Grindlinger, he was the supervisor of eight PhD and scientific advisor to one doctoral dissertation.

Keywords: group, subgroup, generators, defining relations, algorithmic problems.

UDC: 539.12.01

Received: 14.11.2024
Accepted: 10.03.2025

DOI: 10.22405/2226-8383-2025-26-1-5-24