English

Green equivalences in equivariant mathematics

Category Theory 2022-02-24 v2 Algebraic Geometry Algebraic Topology Representation Theory

Abstract

We establish Green equivalences for all Mackey 2-functors, without assuming Krull-Schmidt. By running through the examples of Mackey 2-functors, we recover all variants of the Green equivalence and Green correspondence known in representation theory and obtain new ones in several other contexts. Such applications include equivariant stable homotopy theory in topology and equivariant sheaves in geometry.

Keywords

Cite

@article{arxiv.2001.10646,
  title  = {Green equivalences in equivariant mathematics},
  author = {Paul Balmer and Ivo Dell'Ambrogio},
  journal= {arXiv preprint arXiv:2001.10646},
  year   = {2022}
}

Comments

25 pages. References updated, final version. To appear in Math. Ann

R2 v1 2026-06-23T13:23:33.973Z