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Dorian Chanfi

An introduction to Bruhat-Tits buildings and their compactifications
Mercredi, 15 Janvier, 2020 - 17:00 à 18:00
Résumé : 

Bruhat-Tits buildings were introduced by Iwahori, Goldman, Matsumoto, and formalized by Bruhat and Tits as a tool for studying the structure of p-adic groups appearing in number theory, representation theory and harmonic analysis. The general theory associates to a semisimple group (think SL_n(Q_p)) a (poly-)simplicial complex on which the group acts which encodes much of its structure.
In this talk, we shall give an introduction to this circle of ideas, the end goal being to explain a compactification procedure for these structures, based on Berkovich geometry.

Institution de l'orateur : 
École Polytechnique
Thème de recherche : 
Salle : 
Salle 4
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