Mark Krasnosel'skii

Mark Alexandrovich Krasnosel'skii (Russian: Ма́рк Алекса́ндрович Красносе́льский) (April 27, 1920, Starokostiantyniv – February 13, 1997, Moscow) was a Soviet, Russian and Ukrainian mathematician renowned for his work on nonlinear functional analysis and its applications.

Mark Krasnosel'skii was born in the town of Starokostiantyniv in Ukraine on the 27 April 1920 where his father worked as a construction engineer and his mother taught in an elementary school. In 1932 the Krasnosel'skii family moved to Berdyansk and in 1938 Mark entered the physico-mathematical faculty of Kiev University, which was evacuated at the beginning of World War II to Kazakhstan where it became known as the Joint Ukrainian University.

He graduated in 1942, in the middle of the war, served four years in the Soviet Army, became Candidate in Science in 1948, with a dissertation on self-adjoint extensions of operators with nondense domains, before getting the title of Doctor in Science in 1950, with a thesis on investigations in Nonlinear Functional analysis.

From 1946 till 1952, Mark was a Research Fellow at the Mathematical Institute of the Ukrainian Academy of Science in Kiev. From 1952 till 1967, he was Professor at Voronezh State University. He then moved to Moscow as a Senior Scientific Fellow (1967–74) and then a Head of a Laboratory (1974–90) at the Institute of Control Sciences of the USSR Academy of Science in Moscow. From 1990, he worked at the Institute for Information Transmission Problems of the same Academy.

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