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A noncommutative geometry approach to the representation theory of p-adic groups

Plymen, R (Manchester)
Monday 31 July 2006, 10:00-11:00

Seminar Room 1, Newton Institute


We will begin by recalling the periodic cyclic homology of the Hecke algebra of GL(n). The Langlands parameters occur naturally at this point [joint work with J Brodzki].

This has led us to the formulation of a conjecture, according to which there are simple geometric structures underlying the representation theory of p-adic groups.

We will illustrate this conjecture with examples, including GL(n) and the exceptional group G_2.

We will attempt to relate our conjecture to the Langlands-Deligne-Lusztig parameters (s,u,\rho).

[joint work with Anne-Marie Aubert and Paul Baum].


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