Lazar Lyusternik

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Birth Date:
19.12.1899
Death date:
22.07.1981
Length of life:
81
Days since birth:
45392
Years since birth:
124
Days since death:
15591
Years since death:
42
Patronymic:
Aronovich
Extra names:
Lasar Ljusternik, Лазарь Люстерник
Categories:
Academician, Inventor, Laureate of state prize, Mathematician, Pedagogue, teacher, Professor, Publicist, Scientist
Nationality:
 jew
Cemetery:
Novodevichy Cemetery

Lazar Aronovich Lyusternik (also Lusternik, Lusternick, Ljusternik; Лазарь Аронович Люстерник; 31 December 1899, Zduńska Wola, Congress Poland, Russian Empire (present-day Republic of Poland) – 23 July 1981, Moscow, Russia, Soviet Union) was a Soviet mathematician. He is famous for his work in topology and differential geometry, to which he applied the variational principle. The theory he introduced, together. With Lev Schnirelmann, he proved the theorem of the three geodesics, a conjecture by Henri Poincaré that every convex body in 3-dimensions has at least three simple closed geodesics. The ellipsoid with distinct but nearly equal axis is the critical case with exactly three closed geodesics.

The Lusternik–Schnirelmann theory, as it is called now, is based on the previous work by Poincaré, David Birkhoff, and Marston Morse. It has led to numerous advances in differential geometry and topology. For this work Lyusternik received the Stalin Prize in 1946. In addition to serving as a professor of mathematics at Moscow State University, Lyusternik also worked at the Steklov Mathematical Institute (RAS) from 1934 to 1948 and the Lebedev Institute of Precise Mechanics and Computer Engineering (IPMCE) from 1948 to 1955.

He was a student of Nikolai Luzin. In 1930 he became one of the initiators of the Egorov affair and then one of the participants in the notorious political persecution of his teacher Nikolai Luzin known as the Luzin case or Luzin affair.

Source: wikipedia.org

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