Georges Poitou

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Georges Poitou (born February 11, 1926 in Paris , † December 14, 1989 ) was a French mathematician who dealt with number theory.

biography

Poitou came from a humble background. He attended the Lycée Henri IV in Paris on a scholarship and studied from 1945 at the École normal supérieure (ENS) and graduated there in 1948 with an Agrégation in mathematics. In 1953 he received his doctorate from Albert Chatelet with a thesis on number theory ( Sur l'approximation des nombres complexes par les nombres des corps imaginaires quadratiques dénués d'idéaux non principaux particulièrement lorsque vaut l'algorithme d'Euclide ). He was then Director of Research at the Center national de la recherche scientifique (CNRS) and initially taught as a lecturer ( Maître de Conferences ) at the University of Tunis and from 1955 to 1965 at the Faculté des Sciences de Lille . From 1965 he was at the Faculté des sciences d'Orsay (today University of Paris-Süd ) and was Dean ( Doyen ) there from 1968 to 1970 .

With Hubert Delange (1913-2003) and Charles Pisot he led a seminar for number theory founded by Delange and Pisot in 1959 ( Séminaire Delange-Pisot-Poitou ), which met weekly on Tuesdays at the Institut Henri Poincaré and did a lot for the establishment of number theory research in France reached.

He is known for the Exact Sequence of Poitou-Tate in Galois cohomology and for the Tate-Poitou duality (or the Poitou duality theorem).

From 1981 until his death in 1989 he was president of the École normal supérieure. Under his leadership, the separate teaching of male and female students ended when the ENS on Rue d'Ulm and the École normal supérieure de jeunes filles merged in 1985. Poitou also ensured a fundamental modernization of the teaching offer at the ENS. In 1974 he was President of the Société Mathématique de France .

Poitou was married to the mathematician Lucile Bégueri (at times a Grothendieck student).

literature

  • Obituary by Frédéric Gaussen, Le Monde, December 19, 1989

Fonts

  • Introduction a la Theory of the Categories et aux Problem Universels, Paris: Ediscience 1971
  • Editor: Cohomologie galoisienne des modules finis, Séminaire de l'Institut de Mathématiques de Lille 1962/63, Paris: Dunod 1967

Web links

Remarks

  1. ↑ This has also been in Orsay since the establishment of a university center there in 1958.
personal data
SURNAME Poitou, Georges
BRIEF DESCRIPTION French mathematician
DATE OF BIRTH February 11, 1926
PLACE OF BIRTH Paris
DATE OF DEATH December 14, 1989