Nikolai Lobachevsky
Russian mathematician / From Wikipedia, the free encyclopedia
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Nikolai Ivanovich Lobachevsky (Russian: Никола́й Ива́нович Лобаче́вский, IPA: [nʲikɐˈlaj ɪˈvanəvʲɪtɕ ləbɐˈtɕɛfskʲɪj] (
listen); 1 December [O.S. 20 November] 1792 – 24 February [O.S. 12 February] 1856) was a Russian mathematician and geometer, known primarily for his work on hyperbolic geometry, otherwise known as Lobachevskian geometry, and also for his fundamental study on Dirichlet integrals, known as the Lobachevsky integral formula.
Nikolai Lobachevsky | |
|---|---|
Никола́й Лобаче́вский | |
 Portrait by Lev Kryukov, c. 1839 | |
| Born | 1 December 1792[1][2] Makaryev, Makaryevsky uezd, Nizhny Novgorod Governorate,[3][4] Russian Empire (now Makaryevo, Nizhny Novgorod Oblast, Russia) |
| Died | 24 February 1856 (aged 63) |
| Education | Kazan University (MSc, 1811) |
| Known for | Lobachevskian geometry |
| Scientific career | |
| Fields | Geometry |
| Academic advisors | J. C. M. Bartels[5][6] |
| Notable students | Nikolai Brashman[5] |
| Signature | |
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William Kingdon Clifford called Lobachevsky the "Copernicus of Geometry" due to the revolutionary character of his work.[7][8]