Construction of tame supercuspidal representations in arbitrary residue characteristic

Fuente: arXiv
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Main Authors: Fintzen, Jessica, Schwein, David
Format: Preprint
Published: 2025
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author Fintzen, Jessica
Schwein, David
author_facet Fintzen, Jessica
Schwein, David
contents Let F be a nonarchimedean local field whose residue field has at least four elements. Let G be a connected reductive group over F that splits over a tamely ramified field extension of F. We provide a construction of supercuspidal representations of G(F) via compact induction that contains, among others, all the supercuspidal representations constructed by Yu in 2001, but that also works in residual characteristic two. The input for our construction is described uniformly for all residual characteristics and is analogous to Yu's input except that we do not require our input to satisfy the second genericity condition (GE2) that Yu imposes.
format Preprint
id arxiv_https___arxiv_org_abs_2501_18553
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Construction of tame supercuspidal representations in arbitrary residue characteristic
Fintzen, Jessica
Schwein, David
Representation Theory
Number Theory
Let F be a nonarchimedean local field whose residue field has at least four elements. Let G be a connected reductive group over F that splits over a tamely ramified field extension of F. We provide a construction of supercuspidal representations of G(F) via compact induction that contains, among others, all the supercuspidal representations constructed by Yu in 2001, but that also works in residual characteristic two. The input for our construction is described uniformly for all residual characteristics and is analogous to Yu's input except that we do not require our input to satisfy the second genericity condition (GE2) that Yu imposes.
title Construction of tame supercuspidal representations in arbitrary residue characteristic
topic Representation Theory
Number Theory
url https://arxiv.org/abs/2501.18553