English

An Iwahori theoretic mod $p$ Local Langlands Correspondence

Number Theory 2025-09-10 v1 Representation Theory

Abstract

We extend a comparison theorem of Anandavardhanan-Borisagar between the quotient of the induction of a mod pp character by the image of an Iwahori-Hecke operator and compact induction of a weight to the case of the trivial character. This involves studying the corresponding non-commutative Iwahori-Hecke algebra. We use this to give an Iwahori theoretic reformulation of the (semi-simple) mod pp Local Langlands Correspondence discovered by Breuil and reformulated functorially by Colmez. This version of the correspondence is expected to have applications to computing the mod pp reductions of semi-stable Galois representations.

Keywords

Cite

@article{arxiv.2311.02919,
  title  = {An Iwahori theoretic mod $p$ Local Langlands Correspondence},
  author = {Anand Chitrao},
  journal= {arXiv preprint arXiv:2311.02919},
  year   = {2025}
}