American Canadian mathematician
William Allen Casselman (born November 27, 1941) is an American Canadian mathematician who works in representation theory and automorphic forms . He is a Professor Emeritus at the University of British Columbia .[ 1] He is closely connected to the Langlands program and has been involved in posting all of the work of Robert Langlands on the internet.[ 2]
Career
Casselman did his undergraduate work at Harvard College where his advisor was Raoul Bott and received his Ph.D from Princeton University in 1966 where his advisor was Goro Shimura . He was a visiting scholar at the Institute for Advanced Study in 1974, 1983, and 2001.[ 3] He emigrated to Canada in 1971 and is a Professor Emeritus in mathematics at the University of British Columbia .[ 1]
Research
Casselman specializes in representation theory , automorphic forms , geometric combinatorics , and the structure of algebraic groups . He has an interest in mathematical graphics[ 4] and has been the graphics editor of the Notices of the American Mathematical Society since January, 2001.[ 5]
Awards
In 2012, he became one of the inaugural fellows of the American Mathematical Society .[ 6]
Selected publications
Casselman, Bill (1973). "On some results of Atkin and Lehner". Mathematische Annalen . 201 (4): 301– 314. doi :10.1007/BF01428197 . S2CID 121867474 .
Casselman, Bill (1977). "Characters and Jacquet modules" . Mathematische Annalen . 230 (2): 101– 105. doi :10.1007/BF01370657 . ISSN 0025-5831 . S2CID 121574262 .
Casselman, Bill (1980). "The unramified principal series of p-adic groups. I. The Spherical function". Compositio Mathematica . 40 (3): 387– 406.
Casselman, Bill; Shalika, Joseph (1980). "The unramified principal series of p-adic groups. II. The Whittaker function". Compositio Mathematica . 41 (2): 207– 231.
Casselman, Bill; Milicic, Dragan (1982). "representations" . Duke Mathematical Journal . 49 (4): 869– 930. doi :10.1215/S0012-7094-82-04943-2 . ISSN 0012-7094 .
Borel, Armand ; Casselman, Bill (1983). "L2-cohomology of locally symmetric manifolds of finite volume". Duke Mathematical Journal . 50 (3): 625– 647. doi :10.1215/S0012-7094-83-05029-9 . S2CID 122723214 .
Casselman, Bill; Shahidi, Freydoon (1998). "On irreducibility of standard modules for generic representations" . Annales Scientifiques de l'École Normale Supérieure . 31 (4): 561– 589. doi :10.1016/S0012-9593(98)80107-9 .
Casselman, Bill (2005). Mathematical Illustrations: A Manual of Geometry and PostScript . Cambridge University Press . ISBN 0521839211 .
References
External links
International National Academics Other