Mark Krein
Soviet mathematician
Mark Grigorievich Krein was a Soviet mathematician, one of the major figures of the Soviet school of functional analysis. He is known for works in operator theory, the problem of moments, classical analysis and representation theory.
He was born... Wikipedia
Born: April 3, 1907, Kyiv, Ukraine
Died: October 17, 1989 (age 82 years), Odesa, Ukraine
Nationality: Soviet
Award: Wolf Prize in Mathematics (1982)