English

Green correspondence on centric Mackey functor over fusion systems

Representation Theory 2023-11-29 v4 Group Theory

Abstract

In this paper we give a definition of (centric) Mackey functor over a fusion system which generalizes the notion of Mackey functor over a group. In this context we prove that, given some conditions on a related ring, the centric Burnside ring over a fusion system (as defined by Diaz and Libman) acts on any centric Mackey functor. We also prove that the Green correspondence holds for centric Mackey functors over fusion systems. As a means to prove this we introduce a notion of relative projectivity for centric Mackey functors over fusion systems and provide a decomposition of a particular product in O(Fc)\mathcal{O}\left(\mathcal{F}^c\right)_{\sqcup} in terms of the product in O(NF(H)c)\mathcal{O}\left(N_{\mathcal{F}}\left(H\right)^c\right)_{\sqcup}.

Keywords

Cite

@article{arxiv.2208.07125,
  title  = {Green correspondence on centric Mackey functor over fusion systems},
  author = {Marco Praderio Bova},
  journal= {arXiv preprint arXiv:2208.07125},
  year   = {2023}
}