English

Cyclic representations of general linear p-adic groups

Representation Theory 2020-10-13 v2

Abstract

Let π1,,πk\pi_1,\ldots,\pi_k be smooth irreducible representations of pp-adic general linear groups. We prove that the parabolic induction product π1××πk\pi_1\times\cdots\times \pi_k has a unique irreducible quotient whose Langlands parameter is the sum of the parameters of all factors (cyclicity property), assuming that the same property holds for each of the products πi×πj\pi_i\times \pi_j (i<ji<j), and that for all but at most two representations πi×πi\pi_i\times \pi_i remains irreducible (square-irreducibility property). Our technique applies the recently devised Kashiwara-Kim notion of a normal sequence of modules for quiver Hecke algebras. Thus, a general cyclicity problem is reduced to the recent Lapid-M\'inguez conjectures on the maximal parabolic case.

Keywords

Cite

@article{arxiv.2006.04118,
  title  = {Cyclic representations of general linear p-adic groups},
  author = {Maxim Gurevich and Alberto Minguez},
  journal= {arXiv preprint arXiv:2006.04118},
  year   = {2020}
}

Comments

9 pages; Previous version contained an incorrect Lemma 5.1, current version has additional square-irreducibility assumptions

R2 v1 2026-06-23T16:07:28.086Z