Lev Schnirelmann (nonfiction): Difference between revisions
No edit summary |
No edit summary |
||
| Line 7: | Line 7: | ||
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]]. | 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 (nonfiction)|theorem of the three geodesics]], that a Riemannian manifold topologically equivalent to a sphere has at least three simple [[Closed geodesic (nonfiction)|closed geodesics]]. | ||
Schnirelmann graduated from Moscow State University (1925) and then worked in Steklov Mathematical Institute (1934–1938). His advisor was [[Nikolai Luzin (nonfiction)|Nikolai Luzin]]. | Schnirelmann graduated from Moscow State University (1925) and then worked in Steklov Mathematical Institute (1934–1938). His advisor was [[Nikolai Luzin (nonfiction)|Nikolai Luzin]]. | ||
According to Pontryagin | According to [[Lev Pontryagin (nonfiction)|Lev Pontryagin]] memoir, Schnirelmann committed suicide in Moscow. | ||
== In the News == | == In the News == | ||
| Line 29: | Line 29: | ||
* [[David Birkhoff (nonfiction)]] | * [[David Birkhoff (nonfiction)]] | ||
* [[Nicolas-François Canard (nonfiction)]] - influence | |||
* [[Differential geometry (nonfiction)]] | * [[Differential geometry (nonfiction)]] | ||
* [[Lazar Lyusternik (nonfiction)]] | * [[Lazar Lyusternik (nonfiction)]] | ||
| Line 35: | Line 36: | ||
* [[Marston Morse (nonfiction)]] | * [[Marston Morse (nonfiction)]] | ||
* [[Henri Poincaré (nonfiction)]] | * [[Henri Poincaré (nonfiction)]] | ||
* [[Gabriel Tarde (nonfiction)]] - influenced | |||
* [[Theorem of the three geodesics (nonfiction)]] | |||
* [[Topology (nonfiction)]] | * [[Topology (nonfiction)]] | ||
* [[Léon Walras (nonfiction)]] - influenced | |||
External links: | External links: | ||
Latest revision as of 20:12, 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 Lev Pontryagin memoir, Schnirelmann committed suicide in Moscow.
In the News
Fiction cross-reference
Nonfiction cross-reference
- David Birkhoff (nonfiction)
- Nicolas-François Canard (nonfiction) - influence
- Differential geometry (nonfiction)
- Lazar Lyusternik (nonfiction)
- Nikolai Luzin (nonfiction) - Doctoral advisor
- Mathematics (nonfiction)
- Marston Morse (nonfiction)
- Henri Poincaré (nonfiction)
- Gabriel Tarde (nonfiction) - influenced
- Theorem of the three geodesics (nonfiction)
- Topology (nonfiction)
- Léon Walras (nonfiction) - influenced
External links:
- Lev Schnirelmann @ Wikipedia