English

Generalized Mullineux involution and perverse equivalences

Representation Theory 2020-07-15 v2 Combinatorics

Abstract

We define a generalization of the Mullineux involution on multipartitions using the theory of crystals for higher level Fock spaces. Our generalized Mullineux involution turns up in representation theory via two important derived functors on cyclotomic Cherednik category O\mathcal{O}: Losev's "κ=0\kappa=0" wall-crossing, and the Ringel duality.

Keywords

Cite

@article{arxiv.1808.06087,
  title  = {Generalized Mullineux involution and perverse equivalences},
  author = {Thomas Gerber and Nicolas Jacon and Emily Norton},
  journal= {arXiv preprint arXiv:1808.06087},
  year   = {2020}
}

Comments

Final version. Proof of Proposition 3.3, Lemma 3.10 and Lemma 3.13 rewritten in more detail

R2 v1 2026-06-23T03:37:26.660Z