English

Ihara's Lemma for $\mathrm{GL}_d$: the limit case

Number Theory 2025-10-03 v6

Abstract

Clozel, Harris and Taylor proposed conjectural generalizations of the classical Ihara's lemma for GL2\mathrm{GL}_2, to higher dimensional similitude groups. We prove these conjectures in the so called limit case, which after base change is the essential one, under any hypothesis allowing level raising.

Keywords

Cite

@article{arxiv.2304.11351,
  title  = {Ihara's Lemma for $\mathrm{GL}_d$: the limit case},
  author = {Pascal Boyer},
  journal= {arXiv preprint arXiv:2304.11351},
  year   = {2025}
}

Comments

correction of some typos, and more details

R2 v1 2026-06-28T10:14:25.588Z