Séminaires : Séminaire Groupes Réductifs et Formes Automorphes

Equipe(s) : fa, tn,
Responsables :Alexis Bouthier, Benoît Stroh
Email des responsables : alexis.bouthier@imj-prg.fr, benoit.stroh@imj-prg.fr
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Orateur(s) Venketasubramanian COOLIMUTTAM-GOPALAKRISHNAN - Versailles,
Titre Representations of GL(n) distinguished by GL(n-1)
Date06/02/2012
Horaire10:30 à 11:30
RésumeLet F be a nonarchimedean local field and GL(n):=GL(n,F). A complex representation $\pi$ of GL(n) is said to be GL(n-1)-distinguished if there exists a GL(n-1)-invariant linear form on $\pi.$ We classify those irreducible admissible representations of GL(n),n>2 which are GL(n-1)-distinguished. Moreover, if $\pi$ is a principal series induced from an irreducible representation of a Levi of a parabolic subgroup of GL(n), we show that the multiplicity of the space of GL(n-1)-invariant forms on $\pi$ is bounded by 2.
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