Yevgeny Mikhailovich Nikishin

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Yevgeny Mikhailovich Niki Schin , Russian Евгений Михайлович Никишин , English transcription Evgenii Mikhailovich Nikishin, (* 23. June 1945 in Penza , † 17th December 1986 ) was a Russian mathematician who with Harmonic Analysis dealt.

life and work

Nikischin studied at Lomonosov University with a doctorate in 1969 and did research at the Steklow Institute , where he completed his habilitation in 1971 (Russian doctorate with Pyotr Lavrentjewitsch Ulyanov , 1928-2006). From 1977 he was a professor at Lomonossow University. He died after a long and serious illness.

He dealt with approximation using function systems, for example Padé approximation . Nikishin systems of functions and the theorem of Nikishin and Stein are named after him, a generalization of Stein's factorization theorem that he found in 1970 . He also considers rational approximation in number theory and treats it together with rational approximations in function spaces in a monograph.

In 1973 he received the Salem Prize . In 1972 he received the Lenin Komsomol Prize. In 1978 he was invited speaker at the International Congress of Mathematicians in Helsinki (The Padé Approximants).

Fonts

  • with Vladimir Nikolaevich Sorokin: Rational approximations and orthogonality, AMS 1991

literature

Web links

Individual evidence

  1. Jewgeni Mikhailovich Niki shin in Mathematics Genealogy Project (English)Template: MathGenealogyProject / Maintenance / id used
  2. Nikishin, On simultaneous Padé approximants, Math. USSR Sbornik 41, 1982, 409-425
  3. Stein's Maximal Principle, Blog by Terence Tao, 2011