Twisted Kazhdan-Lusztig conjecture for $p$-adic general linear group
Representation Theory
2026-04-24 v1
Abstract
We use enhanced Langlands parameters to obtain a classification for irreducible representations of twisted -adic general linear groups in unramified principal series. We give the definition of standard representations and prove the twisted Kazhdan-Lusztig conjecture for the multiplicities in the Grothendieck group. We mainly follow Lusztig's work in the connected case using graded Hecke algebra. We show that the parametrization is compatible with the Whittaker-normalized one.
Cite
@article{arxiv.2604.21731,
title = {Twisted Kazhdan-Lusztig conjecture for $p$-adic general linear group},
author = {Yuan Chai},
journal= {arXiv preprint arXiv:2604.21731},
year = {2026}
}