Lev Schnirelmann (nonfiction): Difference between revisions
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[[File:Lev Schnirelmann.jpg|thumb|Lev Schnirelmann.]]'''Lev Genrikhovich Schnirelmann''' (also Shnirelman, Shnirel'man; Лев Ге́нрихович Шнирельма́н; January 2, 1905 – September 24, 1938) was a Soviet [[Mathematician (nonfiction)|mathematician]] who worked on [[Number theory (nonfiction)|number theory]], [[Topology (nonfiction)|topology]], and [[Differential geometry (nonfiction)|differential geometry]]. | [[File:Lev Schnirelmann.jpg|thumb|Lev Schnirelmann.]]'''Lev Genrikhovich Schnirelmann''' (also Shnirelman, Shnirel'man; Лев Ге́нрихович Шнирельма́н; January 2, 1905 – September 24, 1938) was a Soviet [[Mathematician (nonfiction)|mathematician]] who worked on [[Number theory (nonfiction)|number theory]], [[Topology (nonfiction)|topology]], and [[Differential geometry (nonfiction)|differential geometry]]. | ||
He sought to prove Goldbach's conjecture. | He sought to prove [[Goldbach's conjecture (nonfiction)|Goldbach's conjecture]]. | ||
In 1930, using the Brun sieve, he proved that any natural number greater than 1 can be written as the sum of not more than C prime numbers, where C is an effectively computable constant. | In 1930, using the [[Brun sieve (nonfiction)|Brun sieve]], he proved that any [[Natural number (nonfiction)|natural number]] greater than 1 can be written as the sum of not more than C prime numbers, where C is an effectively computable constant. | ||
His other fundamental work is joint with [[Lazar Lyusternik (nonfiction)|Lazar Lyusternik]]. Together, they developed the Lusternik–Schnirelmann category, as it is called now, based on the previous work by [[Henri Poincaré (nonfiction)|Henri Poincaré]], [[David Birkhoff (nonfiction)|David Birkhoff]], and [[Marston Morse (nonfiction)|Marston Morse]]. The theory gives a global invariant of spaces, and has led to advances in differential geometry and topology. | His other fundamental work is joint with [[Lazar Lyusternik (nonfiction)|Lazar Lyusternik]]. Together, they developed the Lusternik–Schnirelmann category, as it is called now, based on the previous work by [[Henri Poincaré (nonfiction)|Henri Poincaré]], [[David Birkhoff (nonfiction)|David Birkhoff]], and [[Marston Morse (nonfiction)|Marston Morse]]. The theory gives a global invariant of spaces, and has led to advances in [[Differential geometry (nonfiction)|differential geometry]] and [[Topology (nonfiction)|topology]]. | ||
They also proved the theorem of the three geodesics, that a Riemannian manifold topologically equivalent to a sphere has at least three simple closed geodesics. | They also proved the theorem of the three geodesics, that a Riemannian manifold topologically equivalent to a sphere has at least three simple closed geodesics. | ||
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== Nonfiction cross-reference == | == Nonfiction cross-reference == | ||
* [[David Birkhoff (nonfiction)]] | |||
* [[Differential geometry (nonfiction)]] | * [[Differential geometry (nonfiction)]] | ||
* [[Lazar Lyusternik (nonfiction)]] | |||
* [[Nikolai Luzin (nonfiction)]] - Doctoral advisor | * [[Nikolai Luzin (nonfiction)]] - Doctoral advisor | ||
* [[Mathematics (nonfiction)]] | * [[Mathematics (nonfiction)]] | ||
* [[Marston Morse (nonfiction)]] | |||
* [[Henri Poincaré (nonfiction)]] | |||
* [[Topology (nonfiction)]] | * [[Topology (nonfiction)]] | ||
Revision as of 19:51, 29 December 2018
Lev Genrikhovich Schnirelmann (also Shnirelman, Shnirel'man; Лев Ге́нрихович Шнирельма́н; January 2, 1905 – September 24, 1938) was a Soviet mathematician who worked on number theory, topology, and differential geometry.
He sought to prove Goldbach's conjecture.
In 1930, using the Brun sieve, he proved that any natural number greater than 1 can be written as the sum of not more than C prime numbers, where C is an effectively computable constant.
His other fundamental work is joint with Lazar Lyusternik. Together, they developed the Lusternik–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.
They also proved the theorem of the three geodesics, that a Riemannian manifold topologically equivalent to a sphere has at least three simple closed geodesics.
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.
In the News
Fiction cross-reference
Nonfiction cross-reference
- David Birkhoff (nonfiction)
- Differential geometry (nonfiction)
- Lazar Lyusternik (nonfiction)
- Nikolai Luzin (nonfiction) - Doctoral advisor
- Mathematics (nonfiction)
- Marston Morse (nonfiction)
- Henri Poincaré (nonfiction)
- Topology (nonfiction)
External links:
- Lev Schnirelmann @ Wikipedia