A distinction criterion for Iwahori-spherical representations

Fuente: arXiv
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Auteur principal: Broussous, Paul
Format: Preprint
Publié: 2024
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author Broussous, Paul
author_facet Broussous, Paul
contents Let $G/H$ be a Galois symmetric space for an unramified quadratic extension of a locally compact field $F$, where the group $H$ is semisimple, simply connected, defined and split over $F$. We prove that there exists a subgroup $Γ= Γ(G/H)$ of the group of invertible elements of the Iwahori-Hecke algebra $\mathcal H$ of $G$ such that an Iwahori-spherical representation of $G$ is $H$-distinguished if and only if the corresponding Iwahori-Hecke module is "$Γ$-distinguished".
format Preprint
id arxiv_https___arxiv_org_abs_2407_03714
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle A distinction criterion for Iwahori-spherical representations
Broussous, Paul
Representation Theory
Let $G/H$ be a Galois symmetric space for an unramified quadratic extension of a locally compact field $F$, where the group $H$ is semisimple, simply connected, defined and split over $F$. We prove that there exists a subgroup $Γ= Γ(G/H)$ of the group of invertible elements of the Iwahori-Hecke algebra $\mathcal H$ of $G$ such that an Iwahori-spherical representation of $G$ is $H$-distinguished if and only if the corresponding Iwahori-Hecke module is "$Γ$-distinguished".
title A distinction criterion for Iwahori-spherical representations
topic Representation Theory
url https://arxiv.org/abs/2407.03714