On principal series representations of quasi-split reductive p-adic groups

Fuente: arXiv
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Main Author: Solleveld, Maarten
Format: Preprint
Published: 2023
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author Solleveld, Maarten
author_facet Solleveld, Maarten
contents Let G be a quasi-split reductive group over a non-archimedean local field. We establish a local Langlands correspondence for all irreducible smooth complex G-representations in the principal series. The parametrization map is injective, and its image is an explicitly described set of enhanced L-parameters. Our correspondence is determined by the choice of a Whittaker datum for G, and it is canonical given that choice. We show that our parametrization satisfies many expected properties, among others with respect to the enhanced L-parameters of generic representations, temperedness, cuspidal supports and central characters. Along the way we characterize genericity in terms of representations of an affine Hecke algebra.
format Preprint
id arxiv_https___arxiv_org_abs_2304_06418
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle On principal series representations of quasi-split reductive p-adic groups
Solleveld, Maarten
Representation Theory
22E50, 20C08, 20G25
Let G be a quasi-split reductive group over a non-archimedean local field. We establish a local Langlands correspondence for all irreducible smooth complex G-representations in the principal series. The parametrization map is injective, and its image is an explicitly described set of enhanced L-parameters. Our correspondence is determined by the choice of a Whittaker datum for G, and it is canonical given that choice. We show that our parametrization satisfies many expected properties, among others with respect to the enhanced L-parameters of generic representations, temperedness, cuspidal supports and central characters. Along the way we characterize genericity in terms of representations of an affine Hecke algebra.
title On principal series representations of quasi-split reductive p-adic groups
topic Representation Theory
22E50, 20C08, 20G25
url https://arxiv.org/abs/2304.06418