Which mathematician contributed most to the decidability of various algebraic groups, Anatoly Maltsev or Semyon Aranovich Gershgorin?
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.
Suren Arakelov Suren Yurievich Arakelov (Russian: Суре́н Ю́рьевич Араке́лов , ) (born October 16, 1947 in Kharkiv) is a Soviet mathematician of Armenian descent known for the influential theory that bears his name.