Hecke algebras for tame supercuspidal types
Representation Theory
2021-01-07 v1 Number Theory
Abstract
Let be a non-archimedean local field of residue characteristic . Let be a connected reductive group over that splits over a tamely ramified extension of . Yu constructed types which are called tame supercuspidal types and conjectured that Hecke algebras associated with these types are isomorphic to Hecke algebras associated with depth-zero types of some twisted Levi subgroups of . In this paper, we prove this conjecture. We also prove that the Hecke algebra associated with a regular supercuspidal type is isomorphic to the group algebra of a certain abelian group.
Keywords
Cite
@article{arxiv.2101.01873,
title = {Hecke algebras for tame supercuspidal types},
author = {Kazuma Ohara},
journal= {arXiv preprint arXiv:2101.01873},
year = {2021}
}