The point of view of extended quotients in the Langlands correspondence

Anne-Marie Aubert  (Sorbonne Universit)

10:00-11:30, November 28, 2023   Уѧ¥102 & Tencent Meeting 596906893 (passcode: 836962)




Abstract:

We will first introduce the notion of the extended quotient of a space by a finite group acting on it, and provide examples. Next, we will recall the definition of the field F of p-adic numbers, and explain how extended quotients can be used to classify the representations of the group SL_n(F) of matrices with entries in F and determinant equal to 1. After a short presentation of the Langlands correspondence, we will build extended quotients from Galois representations and compare them to the previous ones. This talk is a colloquium style talk and welcomes graduate students and motivated undergraduate students.

About the speaker:

Anne-Marie Aubert Ƿѧңȸ졢ʾǽΡ 1990ڰߴѧòʿѧλʦ Jean-Loup Waldspurger 1997 ڰϴѧ÷ָѧоʸAubert ĿǰǷҿѧоģC.N.R.S.ĽܳоԱѧо󰶣ʽоŶӵĸˡ IMJ-PRG ίԱԱԼ дѧUniversite Paris CiteԱ2015-2021ڼ䣬 Co CNRS 칫ңSection 41ѧѧĻijԱҲ2019-2022귨о֣A.N.R. 40 λԱ֮һ2019-2021꣬ѧѧ۵ Chevalley Prize ѡίԱϯҲMATH-AmSud Ŀinterconnections with Algebra Combinatorics and Representation TheoryĹͬ쵼ߡ 2019 Aubert ѧѧڿRepresentation Theoryࡣ

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