Georges Valiron
Georges Jean Marie Valiron (born September 7, 1884 in Lyon , † March 17, 1955 in Paris ) was a French mathematician who dealt with analysis , especially function theory.
Valiron passed his teacher exams in 1908 ( Agrégation ) and taught at the high school in Besançon . He received his doctorate in 1914 under Émile Borel ( Sur les fonctions entières d'ordre nul et d'ordre fini et en particulier sur les fonctions à correspondance régulière ). Then 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 de Sciences (University) in Paris .
His specialty was function theory, in particular the theory of whole and meromorphic functions. In the value distribution theory of meromorphic functions is Valirondefekt (Engl. Valiron deficiency) named after him, as are he and Anders Wiman established Wiman Valiron theory .
In 1932 he gave a plenary lecture at the International Congress of Mathematicians in Zurich (Le théorème de Borel-Julia dans la théorie des fonctions méromorphes). He also gave lectures at the International Congress of Mathematicians in Strasbourg in 1920 and in Bologna in 1928 .
Fields medalist Laurent Schwartz is one of his students .
In 1948 he received the Prix Poncelet. In 1938 he was president of the Société Mathématique de France .
Fonts
- Lecture on the general theory of integral functions . 1923
- with Paul Appell : Analyze mathématique . 2 volumes, 1938
- Fonctions analytiques . 1954
- Cours d'analysis mathematiques . Masson 1942, 1945 (with the two volumes: Théorie des fonctions . 1942, Equations fonctionelles et applications . 1945, 2nd edition 1950), reprint by Masson 1966 and by Edition Jacques Gabay 1989
- The geometric theory of ordinary differential equations . Brookline, Massachusetts, 1984 (English translation of his Cours d Analysis)
- Classical differential geometry of curves and surfaces . Brookline, 1986
Web links
- French biography at ChronoMath
- Henri Milloux : Georges Valiron (1884-1955) , L'Enseignement Mathématique , Volume 2, pp. 217-223, 1956.
- John J. O'Connor, Edmund F. Robertson : Georges Valiron. In: MacTutor History of Mathematics archive .
Individual evidence
- ↑ Date of death according to the obituary in the Archives nationales
| personal data | |
|---|---|
| SURNAME | Valiron, Georges |
| ALTERNATIVE NAMES | Valiron, Georges Jean Marie (full name) |
| BRIEF DESCRIPTION | French mathematician |
| DATE OF BIRTH | September 7, 1884 |
| PLACE OF BIRTH | Lyon |
| DATE OF DEATH | March 1955 |
| Place of death | Paris |