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Lev G. Schnirelmann

Born January 2, 1905(1905-01-02)
Gomel, Belarus
Died September 24, 1938 (aged 33)
Moscow, Russia
Nationality Russian
Fields Mathematics
Institutions Steklov Mathematical Institute
Alma mater Moscow State University
Doctoral advisor Nikolai Luzin
Known for Schnirelmann density
Schnirelmann's constant
Schnirelmann's theorem

Lev Genrikhovich Schnirelmann (Russian: Лев Генрихович Шнирельман), also Shnirelman, Shnirel'man (January 2, 1905 in Gomel – September 24, 1938 in Moscow) was a Soviet mathematician who sought to prove Goldbach's conjecture. In 1931, using the Brun sieve, he proved that any natural number greater than 1 can be written as the sum of not more than 20 prime numbers.

His other fundamental work is joint with Lazar Lyusternik. Together, they developed the Lyusternik-Schnirelmann category, as it is called now, based on the previous work by Henri Poincaré, David Birkhoff, and Marston Morse. The theory gives a global invariant of spaces, and has led to advances in differential geometry and topology.

Schnirelmann graduated from Moscow State University (1925) and then worked in Steklov Mathematical Institute (1934–1938). His advisor was Nikolai Luzin.

According to Pontryagin's memoir, Schnirelmann committed suicide in Moscow.[1]

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