English

Parameters for Generalized Hecke Algebras in Type B

Representation Theory 2018-08-28 v3

Abstract

The irreducible representations of full support in the rational Cherednik category Oc(W)\mathcal{O}_c(W) attached to a Coxeter group WW are in bijection with the irreducible representations of an associated Iwahori-Hecke algebra. Recent work has shown that the irreducible representations in Oc(W)\mathcal{O}_c(W) of arbitrary given support are similarly governed by certain generalized Hecke algebras. In this paper we compute the parameters for these generalized Hecke algebras in the remaining previously unknown cases, corresponding to the parabolic subgroup Bn×SkB_n \times S_k in Bn+kB_{n+k} for k2k \geq 2 and n0n \geq 0.

Keywords

Cite

@article{arxiv.1708.03673,
  title  = {Parameters for Generalized Hecke Algebras in Type B},
  author = {Max Murin and Seth Shelley-Abrahamson},
  journal= {arXiv preprint arXiv:1708.03673},
  year   = {2018}
}

Comments

19 pages. v2: minor revisions. v3: minor revisions, final version, to appear in the Journal of Algebra and Its Applications

R2 v1 2026-06-22T21:12:52.430Z