Georges Valiron
Georges Jean Marie Valiron ( born September 7, 1884 in Lyon, † March 1955 in Paris) was a French mathematician, with analysis, especially functional theory dealt.
Valiron put 1908 his teacher exam from ( Agrégation ) and taught at the high school in Besançon. He received his doctorate in 1914 at Émile Borel ( Sur les fonctions d'ordre entières nul et d'ordre fini et en particulier sur les fonctions à correspondance régulière ). After that, he was a teacher ( professor ) in Valence ( Drôme). From 1922 he was at the University of Strasbourg and from 1931 Professor of Analysis at the Faculté des Sciences (University) in Paris.
His specialty was the theory of functions, in particular the theory of entire and meromorphic functions. In the value distribution theory of meromorphic functions of Valirondefekt (English Valiron deficiency ) is named after him, as well as founded by him and Anders Wiman Wiman Valiron theory.
In 1932 he gave a plenary lecture at the International Congress of Mathematicians in Zurich (Le theorems de Borel Julia dans la théorie des fonctions méromorphes ).
Among his students is one of the Fields medalist Laurent Schwartz.
In 1948 he received the Prix Poncelet. In 1938 he was president of the Société Mathématique de France.
Writings
- Lecture on the general theory of integral functions. 1923
- With Paul appeal: analysis mathématique. 2 volumes, 1938
- Fonctions analytiques. 1954
- Cours d'analyze mathematiques. Masson, 1942, 1945 ( with the two volumes:. . Théorie des fonctions 1942, Equations fonctionelles et applications, 1945, 2nd edition 1950), reprint in Masson 1966 and by Edition Jacques Gabay 1989
- The geometric theory of ordinary differential equations. Brookline, Massachusetts, 1984 ( English translation of his Cours d' analyze )
- Classical differential geometry of curves and surfaces. Brookline, 1986