Mark Krasnoselsky
1920–1997 (age 77)
Biography
Mark Aleksandrovich Krasnoselsky (Russian: Ма́рк Алекса́ндрович Красносе́льский; 27 April 1920, Starokostiantyniv – 13 February 1997, Moscow) or Mark Alexsandrovich Krasnoselskii was a Soviet and Russian mathematician renowned for his work on nonlinear functional analysis and its applications.