André Haefliger
André Haefliger (born May 22, 1929 in Nyon , Switzerland ) is a Swiss mathematician who mainly deals with topology .
Live and act
André Haefliger is the son of a bank clerk and went to high school in Geneva . He studied mathematics in Lausanne and received his doctorate under Charles Ehresmann at the University of Strasbourg in 1958 ( Structures feuilletées et cohomologie à valeurs dans un faisceau de groupoides ). From 1959 to 1961 he was at the Institute for Advanced Study in Princeton . From 1961 he was associate professor, from 1962 full professor at the University of Geneva .
Haefliger made important contributions to topology , for example the knot theory (including Haefliger-Zeeman unknotting theorem ) and the theory of foliage .
1974/75 he was President of the Swiss Mathematical Society . He is an honorary doctor of the ETH Zurich (1992). In 1966 he was invited speaker at the ICM in Moscow ( Knotted spheres and related geometric problems ).
Among his students is Vaughan Jones .
Fonts (selection)
- Structures feuilletées et cohomologie à valeur dans un faisceau de groupoïdes. Comment. Math. Helv. 32 1958 248-329.
- Plongements différentiables de variétés dans variétés. Comment. Math. Helv. 36 1961 47-82.
- with Armand Borel : La classe d'homologie fondamentale d'un espace analytique. Bull. Soc. Math. France 89 1961 461-513.
- with Morris Hirsch : Immersions in the stable range. Ann. of Math. (2) 75 1962 231-241.
- Knotted (4k − 1) –spheres in 6k-space. Ann. of Math. (2) 75 1962 452-466.
- Variétés feuilletées. Ann. Scuola Norm. Sup. Pisa (3) 16 1962 367-397.
- Differential embeddings of S n in S n + q for q> 2. Ann. of Math. (2) 83 1966 402-436.
- with Raoul Bott : On characteristic classes of Γ -foliations. Bull. Amer. Math. Soc. 1972, 78: 1039-1044.
- Groupoïdes d'holonomie et classifiants. Transversal structure of foliations (Toulouse, 1982). Astérisque No. 116: 70-97 (1984).
- with Martin Bridson : Metric spaces of non-positive curvature. Basic teachings of the mathematical sciences 319. Springer-Verlag, Berlin, 1999. ISBN 3-540-64324-9
Web links
- Interview with André Haefliger
- Max-Albert Knus: Haefliger [Haefliger], André. In: Historical Lexicon of Switzerland .
- André Haefliger on the website of the University of Geneva
- Literature by and about André Haefliger in the catalog of the German National Library
| personal data | |
|---|---|
| SURNAME | Haefliger, André |
| ALTERNATIVE NAMES | Häfliger, André |
| BRIEF DESCRIPTION | Swiss mathematician |
| DATE OF BIRTH | May 22, 1929 |
| PLACE OF BIRTH | Nyon |