Léon Autonne

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Léon César Autonne (born July 28, 1859 in Odessa ; † January 12, 1916 ) was a French engineer and mathematician who dealt with algebraic geometry, differential equations and algebra (matrices, etc.).

Life

Autonne studied from 1878 to 1880 at the École Polytechnique and then at the École des ponts et chaussées , where he became chief engineer. He received his doctorate from the Sorbonne in 1882 (Recherches sur les intégrales algébriques des équations differentielles à coefficients rationnels), with Charles Hermite as chairman of the examination board. In his dissertation, he built on the work of Camille Jordan .

An essay by him in the Comptes Rendus Acad. Sci. Paris from 1891 is one of the earliest mentions of the term Lie groups (as Mr. Lie's groups).

He was an invited speaker at the International Congress of Mathematicians of 1897, 1900, 1904 and 1908.

The Autonne-Takagi factorization of a complex symmetric matrix is ​​named after him (see Symmetric Matrix ).

Fonts

  • Recherches sur les intégrales algébriques des equations differentielles à coefficients rationnels, Gauthier-Villars 1882
  • Sur la theory of equations differentials du 1e ordre et du 1e degré, Gauthier-Villars 1891
  • Sur La representation des courbes gauches algebriques 1896
  • Sur les formes mixtes, Annales de l´Université de Lyon, 1905
  • Notice sur les recherches mathématiques, Gauthier Villars 1913 (report on his mathematical work)

literature

  • Henri Poincaré: La correspondance d'Henri Poincaré avec des mathématiciens de A à H, Cahiers du séminaire d'histoire des mathématiques, Volume 7, 1986, p. 80 (Letters from Autonne from 1881 to 1884 on topics from the dissertation of Autonne, they are not printed; Poincaré's letters of reply have not survived ), numdam

Web links

Individual evidence

  1. ↑ Place of birth Teubner catalog 1908
  2. ↑ Year of death (sometimes 1917 is also given) according to obituary in Revue générale des sciences pures et appliquées 1918
  3. ^ Yvette Kosmann-Schwarzbach, The Noether Theorems, Springer, 2011, p. 31
personal data
SURNAME Autonne, Léon
ALTERNATIVE NAMES Autonne, Léon César (full name)
BRIEF DESCRIPTION French engineer and mathematician
DATE OF BIRTH July 28, 1859
PLACE OF BIRTH Odessa
DATE OF DEATH January 12, 1916