Semyon Aranovich Gershgorin and Vladimir Berkovich, have which occupation?
Semyon Aranovich Gershgorin Semyon Aronovich Gershgorin (August 24, 1901 – May 30, 1933) was a Soviet (born in Pruzhany, Belarus, Russian Empire) mathematician. He began as a student at the Petrograd Technological Institute in 1923, became a Professor in 1930, and was given an appointment at the Leningrad Mechanical Engineering Institute in the same year. His contributions include the Gershgorin circle theorem.
Alexander Isaakovich Gelman Alexander Isaakovich Gelman (Russian: Алекса́ндр Исаа́кович Ге́льман ; born 25 October 1933 in Donduşeni), original given name Shunya (Russian: Шу́ня ), is a Bessarabian-born Soviet and Russian playwright, writer, and screenwriter.