Kari Astala

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Kari Astala (born July 26, 1953 in Helsinki ) is a Finnish mathematician who deals with analysis.

Astala graduated from the University of Helsinki in 1977 and received his doctorate there in 1980 (On measures of compactness and ideal variations in Banach spaces). In 1984 he became a lecturer at the University of Helsinki and in 1990 an assistant professor. From 1995 to 2002 he was a professor at Jyväskylä University . He has been a professor at the University of Helsinki since 2002 and was Academy Professor from 2006 to 2011.

In 1994 he received the Salem Prize for solving the conjecture by Frederick Gehring and Reich in the theory of quasi-conformal maps, using the theory of dynamic systems. In 2003 he was involved in the solution of Alberto Calderón's inverse problem , which has application in electrical impedance tomography. He also published with leading specialist in quasi-conformal mapping Frederick Gehring.

In 2000 he was Gehring Visiting Professor at the University of Michigan. He has been at MSRI , the Mittag-Leffler Institute and the Institute for Advanced Study , among others .

In 1998 he was invited speaker at the International Congress of Mathematicians in Berlin (Analytic aspects of quasiconformality) and at the European Congress of Mathematicians in Budapest in 1996 and in Krakow in 2012. In 2003 he received the Magnus Ehrnrooth Foundation Prize and in 2011 the Finnish Cultural Foundation. From 2002 to 2006 he was President of the Finnish Mathematical Society and in 1997 he became a member of the Finnish Academy of Sciences.

Web links

Individual evidence

  1. ^ Astala, Area distortion of quasiconformal mappings. Acta Math. 173 (1994), 37-60
  2. ↑ K. Astala, M. Lassas, L. Päivärinta: Calderon's inverse problem for anisotropic conductivity in the plane, Comm. Partial Differential Equations 30 (2005), 207-224
  3. ↑ Astala, K .: Analytic aspects of quasiconformality . In: Proceedings of the International Congress of Mathematicians, 1998, Berlin , Volume vol. 2 1998, pp. 617-626. pdf
personal data
SURNAME Astala, Kari
BRIEF DESCRIPTION Finnish mathematician
DATE OF BIRTH July 26, 1953
PLACE OF BIRTH Helsinki