Unitary representations attached to parabolic subgroups: the case of abelian unipotent radical

Fuente: arXiv
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Main Author: Ciubotaru, Dan
Format: Preprint
Published: 2025
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author Ciubotaru, Dan
author_facet Ciubotaru, Dan
contents We classify the unitary representations with integral infinitesimal character in Lusztig's category of unipotent representations in the case when the geometric parameter space comes from the action of a Levi subgroup on the abelian nilradical of a (maximal) parabolic subalgebra. We organise the unitary representations into microlocal Arthur packets. This is a test case for investigating a conjectural description of unitary representations with integral infinitesimal character.
format Preprint
id arxiv_https___arxiv_org_abs_2510_11862
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Unitary representations attached to parabolic subgroups: the case of abelian unipotent radical
Ciubotaru, Dan
Representation Theory
22E50
We classify the unitary representations with integral infinitesimal character in Lusztig's category of unipotent representations in the case when the geometric parameter space comes from the action of a Levi subgroup on the abelian nilradical of a (maximal) parabolic subalgebra. We organise the unitary representations into microlocal Arthur packets. This is a test case for investigating a conjectural description of unitary representations with integral infinitesimal character.
title Unitary representations attached to parabolic subgroups: the case of abelian unipotent radical
topic Representation Theory
22E50
url https://arxiv.org/abs/2510.11862