English

Beijing notes on the categorical local Langlands conjecture

Number Theory 2024-09-12 v2 Algebraic Geometry Representation Theory

Abstract

We formulate some refinements and complements to the categorical local Langlands conjecture of Fargues-Scholze. In particular, we state the expected compatibilities with Eisenstein series and duality, and explain some of their consequences. We also begin the process of matching t-structures on both sides. Notably, we introduce the so-called hadal t-structure on the automorphic side, which has good finiteness properties, and which conjecturally matches with a suitable perverse coherent t-structure on the spectral side.

Keywords

Cite

@article{arxiv.2310.04533,
  title  = {Beijing notes on the categorical local Langlands conjecture},
  author = {David Hansen},
  journal= {arXiv preprint arXiv:2310.04533},
  year   = {2024}
}

Comments

v2: Langlands functor now goes in the morally correct direction, expanded discussion of coherent Springer sheaves, updated references, many small changes and corrections. 72 pages, with an appendix by Adeel Khan

R2 v1 2026-06-28T12:42:59.595Z