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Home » GRT Pizza Seminar: Hitchin-Frenkel-Ngô's fibration and Vinberg semigroup

Seminar

GRT Pizza Seminar: Hitchin-Frenkel-Ngô's fibration and Vinberg semigroup October 31, 2014 (11:45 AM PDT - 12:30 PM PDT)
Parent Program: Geometric Representation Theory
Location: MSRI: Simons Auditorium
Speaker(s) Alexis Bouthier (Université Paris-Sud (Orsay))
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In this talk, we will explain the link between the Vinberg's semigroup and the Hitchin group like fibration, that was introduced by Frenkel and Ngô for SL_{2}. This fibration appears as a nice object to get orbital integrals for the spherical Hecke algebra and a good understanding of the orbital side of the trace formula.

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