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Nekrasov, Aleksandr Ivanovich
Born Nov. 27 (Dec. 9), 1883, in Moscow; died there May 21, 1957. Soviet scientist in mechanics. Academician of the Academy of Sciences of the USSR (1946; corresponding member, 1932).
Nekrasov graduated from Moscow University in 1906 and was retained at the university to prepare for the post of professor. He taught at a number of higher educational institutions and, beginning in 1918, at Moscow State University, where he became a professor in 1937. From 1930 to 1938 he worked at the Central Aerohydrodynamics Institute, and after 1945, at the Institute of Mechanics of the Academy of Sciences of the USSR. He proposed methods for the study of steady-state waves of finite amplitude on the surface of a heavy incompressible liquid.
Nekrasov was the author of works on the nonlinear theory of steady-state wave motion of a fluid and on the solution of problems associated with jet flow around a predetermined curvilinear shape in compressible and incompressible fluids. He proposed a method for determining the flow of a stream of gas around plane contours. He studied the diffusion of a vortex in a viscous fluid and the problem of flutter in an airplane wing. In mathematics, he studied nonlinear integral equations with a symmetric nucleus. He was awarded the State Prize of the USSR (1952), the Order of the Red Banner of Labor, and medals.
REFERENCESAleksandr Ivanovich Nekrasov. Moscow-Leningrad, 1950. (AN SSSR: Materialy k biobibliografii uchenykh SSSR.)
“Aleksandr Ivanovich Nekrasov” [obituary]. Izvestiia AN SSSR: Otdelenie tekhnicheskikh nauk, 1957, no. 6.