William Allen Casselman (born November 27, 1941) is an

American Canadian American Canadians are Canadians of American descent. The term is most often used to refer to Canadians who migrated from or have ancestry from the United States. Demography According to the 2016 Census, 29,590 Canadians reported American as ...

mathematician who works in representation theory and

automorphic forms In harmonic analysis and number theory, an automorphic form is a well-behaved function from a topological group ''G'' to the complex numbers (or complex vector space) which is invariant under the action of a discrete subgroup \Gamma \subset G of ...

. He is a Professor Emeritus at the University of British Columbia. He is closely connected to the Langlands program and has been involved in posting all of the work of Robert Langlands on the internet.

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. He emigrated to Canada in 1971 and is a Professor Emeritus in mathematics at the University of British Columbia.

Research

Casselman specializes in representation theory,

geometric combinatorics Geometric combinatorics is a branch of mathematics in general and combinatorics in particular. It includes a number of subareas such as polyhedral combinatorics (the study of faces of convex polyhedra), convex geometry (the study of convex sets ...

, and the structure of

algebraic groups In mathematics, an algebraic group is an algebraic variety endowed with a group structure which is compatible with its structure as an algebraic variety. Thus the study of algebraic groups belongs both to algebraic geometry and group theory. Ma ...

. He has an interest in mathematical graphics and has been the graphics editor of the ''Notices of the American Mathematical Society'' since January, 2001.

Awards

In 2012, he became one of the inaugural fellows of the

American Mathematical Society The American Mathematical Society (AMS) is an association of professional mathematicians dedicated to the interests of mathematical research and scholarship, and serves the national and international community through its publications, meetings, ...

Selected publications

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References

External links

Publications of Bill Casselman

Bill Casselman's Home Page

William Allen Casselman at the Mathematics Genealogy Project
{{DEFAULTSORT:Casselman, Bill 1941 births Group theorists Algebraists 20th-century Canadian mathematicians 21st-century Canadian mathematicians University of British Columbia Faculty of Science faculty Institute for Advanced Study visiting scholars Harvard College alumni Princeton University alumni Living people Fellows of the American Mathematical Society People from Glen Ridge, New Jersey