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Andrey Gonchar (mathematician)

Andrey Aleksandrovich Gonchar, (Андрей Александрович Гончар, 21 November 1931, Leningrad – 10 October 2012, Moscow) was a Soviet and Russian mathematician, specializing in analysis.[1]

At the Moscow State University Gonchar graduated in 1954 and received in 1967 his Russian candidate degree (Ph.D.) under Sergey Mergelyan,[2] He received his Russian doctorate (higher doctoral degree) in 1964 from the Steklov Institute. Gonchar was a professor at the Steklov Institute and the Moscow State University. From 1972 to 2002 he was a member of the complex analysis department of the Steklov Institute.

Gonchar's research focused on Padé approximants (specifically the relation between the convergence of the Padé approximants and the analytic properties of the function to be approximated) and asymptotic properties of orthogonal polynomials (investigated by means of potential theory).

He was an Invited Speaker of the ICM in Moscow in 1966 (Properties of functions related to the rapidity with which they can be approximated by rational functions)[3] and in Berkeley 1986 (Rational approximations of analytic functions).[4] He was elected in 1974 a corresponding member and in 1987 a full member of the Russian Academy of Sciences, of which he was a vice president from 1991 to 1998. In 1998 he received the Demidov Prize.

From 1988 until his death he was an editor for the Matematicheskii Sbornik.

References edit

  1. ^ In memoriam: Andrei Aleksandrovich Gonchar by Guillermo Lopez Lagomasino, Andrei Martinez Finkelshtein, Paul Nevai, Edward B. Saff, J. Approx. Theory, vol. 172, 2013, A1–A13.
  2. ^ Andrey Gonchar at the Mathematics Genealogy Project
  3. ^ Gončar, A. A. (1968). "Properties of functions related to the rapidity with which they can be approximated by rational functions". In Aizerman, M. A. (ed.). Thirty-one invited addresses at the International Congress of Mathematicians in Moscow in 1966. American Mathematical Society Translations, Series 2, Vol. 70. American Mathematical Soc. p. 49. ISBN 9780821896457.
  4. ^ "Rational approximations of analytic functions by A. A. Gonchar". Nine papers from the International Congress of Mathematicians 1986. American Mathematical Society Translations. Series 2. Vol. 147. Vol. 147. 1990. pp. 25–34. doi:10.1090/trans2/147. ISBN 9780821831335.

External links edit

  • Gonchar Andrei Aleksandrovich on Mathnet.ru

andrey, gonchar, mathematician, andrey, aleksandrovich, gonchar, Андрей, Александрович, Гончар, november, 1931, leningrad, october, 2012, moscow, soviet, russian, mathematician, specializing, analysis, moscow, state, university, gonchar, graduated, 1954, recei. Andrey Aleksandrovich Gonchar Andrej Aleksandrovich Gonchar 21 November 1931 Leningrad 10 October 2012 Moscow was a Soviet and Russian mathematician specializing in analysis 1 At the Moscow State University Gonchar graduated in 1954 and received in 1967 his Russian candidate degree Ph D under Sergey Mergelyan 2 He received his Russian doctorate higher doctoral degree in 1964 from the Steklov Institute Gonchar was a professor at the Steklov Institute and the Moscow State University From 1972 to 2002 he was a member of the complex analysis department of the Steklov Institute Gonchar s research focused on Pade approximants specifically the relation between the convergence of the Pade approximants and the analytic properties of the function to be approximated and asymptotic properties of orthogonal polynomials investigated by means of potential theory He was an Invited Speaker of the ICM in Moscow in 1966 Properties of functions related to the rapidity with which they can be approximated by rational functions 3 and in Berkeley 1986 Rational approximations of analytic functions 4 He was elected in 1974 a corresponding member and in 1987 a full member of the Russian Academy of Sciences of which he was a vice president from 1991 to 1998 In 1998 he received the Demidov Prize From 1988 until his death he was an editor for the Matematicheskii Sbornik References edit In memoriam Andrei Aleksandrovich Gonchar by Guillermo Lopez Lagomasino Andrei Martinez Finkelshtein Paul Nevai Edward B Saff J Approx Theory vol 172 2013 A1 A13 Andrey Gonchar at the Mathematics Genealogy Project Goncar A A 1968 Properties of functions related to the rapidity with which they can be approximated by rational functions In Aizerman M A ed Thirty one invited addresses at the International Congress of Mathematicians in Moscow in 1966 American Mathematical Society Translations Series 2 Vol 70 American Mathematical Soc p 49 ISBN 9780821896457 Rational approximations of analytic functions by A A Gonchar Nine papers from the International Congress of Mathematicians 1986 American Mathematical Society Translations Series 2 Vol 147 Vol 147 1990 pp 25 34 doi 10 1090 trans2 147 ISBN 9780821831335 External links editGonchar Andrei Aleksandrovich on Mathnet ru Retrieved from https en wikipedia org w index php title Andrey Gonchar mathematician amp oldid 1142496133, wikipedia, wiki, book, books, library,

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