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Andronov
Andronov () is a Russian surname. Notable people with the surname include: * Aleksandr Andronov (1901–1952), Soviet physicist * Yuriy Andronov (born 1971), Russian race walker See also * Andronov–Pontryagin criterion of dynamical systems * Andronov (crater), a lunar crater * 11003 Andronov, a minor planet {{surname, Andronov Russian-language surnames ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aleksandr Andronov
Aleksandr Aleksandrovich Andronov (; , Moscow – October 31, 1952, Gorky) was a Soviet physicist and member of the Soviet Academy of Sciences (1946). He worked extensively on the theory of stability of dynamical systems, introducing (together with Lev Pontryagin) the notion of structural stability. In that context, he also contributed to the mathematical theory of self-oscillation (a term that he coined) by establishing a link between the generation of oscillations and the theory of Lyapunov stability. He developed the comprehensive theory of self-oscillations by linking it with the qualitative theory of differential equations, topology, and with the general theory of stability of motion. The crater Andronov on the Moon is named after him. Biography Andronov was born in Moscow into a wealthy family. His mother, Lidia, separated from his father when Aleksandr was still a child. His grandfather, the merchant, provided for them. In 1909 Lidia married doctor Korneliy Lipsky, r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andronov (crater)
Andronov is a small lunar impact crater that lies across the southwest rim of the walled plain named Gagarin. It is located on the southern hemisphere of the far side of the Moon, and can not be seen directly from the Earth. Just to the west of Andronov is the crater Levi-Civita Levi-Civita may also refer to: * Tullio Levi-Civita Tullio Levi-Civita, (; ; 29 March 1873 – 29 December 1941) was an Italian mathematician, most famous for his work on absolute differential calculus ( tensor calculus) and its applications to .... Andronov is a circular, bowl-shaped formation with a small central floor. There is a tiny craterlet in the northern interior wall. This feature is otherwise unremarkable, and is similar in appearance to many other small craters to be found across the lunar surface. References * * * * * * * * * * * * External links * LTO-102B3 Lunar Topographic Orthophotomap, Andronov {{Craters on the Moon: A–B Impact craters on the Moon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Andronov–Pontryagin Criterion
The Andronov–Pontryagin criterion is a necessary and sufficient condition for the stability of dynamical systems in the plane. It was derived by Aleksandr Andronov and Lev Pontryagin in 1937. Statement A dynamical system : \dot = v(x), where v is a C^-vector field on the plane, x \in \mathbb^, is orbitally topologically stable if and only if the following two conditions hold: # All equilibrium points and periodic orbits are ''hyperbolic''. # There are no ''saddle connections''. The same statement holds if the vector field v is defined on the unit disk and is transversal to the boundary. Clarifications Orbital topological stability of a dynamical system means that for any sufficiently small perturbation (in the ''C''1-metric), there exists a homeomorphism close to the identity map which transforms the orbits of the original dynamical system to the orbits of the perturbed system (cf structural stability). The first condition of the theorem is known as global hyperbol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yuriy Andronov
Yuriy Vladimirovich Andronov (; born 6 November 1971 in Samara) is a Russian race walker. He was disqualified from the 2014 IAAF World Race Walking Cup The 2014 World Athletics Race Walking Team Championships, IAAF World Race Walking Cup was held in Taicang, China, on 3–4 May 2014. The course was a 2 km loop along Shanghai Road between Banjing Road and Loujiang Road in the centre of the ci ..., having failed a doping test, and was banned from the sport for two years. IAAF. Retrieved on 2014-12-20. International co ...
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11003 Andronov
Eleven or 11 may refer to: *11 (number) * One of the years 11 BC, AD 11, 1911, 2011 Literature * ''Eleven'' (novel), a 2006 novel by British author David Llewellyn *''Eleven'', a 1970 collection of short stories by Patricia Highsmith *''Eleven'', a 2004 children's novel in The Winnie Years by Lauren Myracle *''Eleven'', a 2008 children's novel by Patricia Reilly Giff *''Eleven'', a short story by Sandra Cisneros Music *Eleven (band), an American rock band * Eleven: A Music Company, an Australian record label *Up to eleven, an idiom from popular culture, coined in the movie ''This Is Spinal Tap'' Albums * ''11'' (The Smithereens album), 1989 * ''11'' (Ua album), 1996 * ''11'' (Bryan Adams album), 2008 * ''11'' (Sault album), 2022 * ''Eleven'' (Harry Connick, Jr. album), 1992 * ''Eleven'' (22-Pistepirkko album), 1998 * ''Eleven'' (Sugarcult album), 1999 * ''Eleven'' (B'z album), 2000 * ''Eleven'' (Reamonn album), 2010 * ''Eleven'' (Martina McBride album), 2011 * ''Eleven'' (Mr Fog ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |