English

Splendid and perverse equivalences

Representation Theory 2014-10-14 v2

Abstract

Inspired by the works of Rickard on splendid equivalences and of Chuang and Rouquier on perverse equivalences, we are here interested in the combination of both, a splendid perverse equivalence. This is naturally the right framework to understand the relations between global and local perverse equivalences between blocks of finite groups, as a splendid equivalence induces local derived equivalences via the Brauer functor. We prove that under certain conditions, we have an equivalence between a perverse equivalence between the homotopy category of p-permutation modules and local derived perverse equivalences, in the case of abelian defect group.

Cite

@article{arxiv.1406.2123,
  title  = {Splendid and perverse equivalences},
  author = {Léo Dreyfus-Schmidt},
  journal= {arXiv preprint arXiv:1406.2123},
  year   = {2014}
}

Comments

13 pages, 4 figures

R2 v1 2026-06-22T04:33:50.496Z