N. M. Dobrovolsky, E. V. Manokhin, I. V. Dobrynina, V. N. Chubarikov, N. N. Dobrovolsky, I. Yu. Rebrova, “On the 85th anniversary of Ashot Enofovich Ustyan”, Chebyshevskii Sb., 2022, Volume 23, Issue 4,Pages <nobr>394

MEMORABLE DATES

On the 85th anniversary of Ashot Enofovich Ustyan

N. M. Dobrovolsky^a, E. V. Manokhin^b, I. V. Dobrynina^c, V. N. Chubarikov^d, N. N. Dobrovolsky^ae, I. Yu. Rebrova^a

^a Tula State Lev Tolstoy Pedagogical University (Tula)
^b Financial University under the Government of the Russian Federation (Tula Branch) (Tula)
^c Academy of Civil Protection EMERCOM of Russia (Moscow)
^d Lomonosov Moscow State University (Moscow)
^e Tula State University (Tula)

Abstract: This work is dedicated to the 85th anniversary of Professor Ashot Enofovich Ustyan.
The paper presents facts from the biography of the hero of the day.
Information about the scientific work of A. E. Ustyan is given.
Sufficient space is given to the organizational and pedagogical activities of Professor A. E. Ustyan.
The information about awards and incentives of A. E. Ustyan for his fruitful scientific and pedagogical activity is given.

Keywords: M. D. Grindlinger, A. E. Ustyan, algorithmic problems of semigroup theory, the problem of word equality, the problem of embeddability of semigroups into groups.

UDC: 51(092)

DOI: 10.22405/2226-8383-2022-23-4-394-404