English

Stratification and duality for homotopical groups

Algebraic Topology 2019-07-08 v2 Group Theory Representation Theory

Abstract

We generalize Quillen's FF-isomorphism theorem, Quillen's stratification theorem, the stable transfer, and the finite generation of cohomology rings from finite groups to homotopical groups. As a consequence, we show that the category of module spectra over C(BG,Fp)C^*(B\mathcal{G},\mathbb{F}_p) is stratified and costratified for a large class of pp-local compact groups G\mathcal{G} including compact Lie groups, connected pp-compact groups, and pp-local finite groups, thereby giving a support-theoretic classification of all localizing and colocalizing subcategories of this category. Moreover, we prove that pp-compact groups admit a homotopical form of Gorenstein duality.

Keywords

Cite

@article{arxiv.1711.03491,
  title  = {Stratification and duality for homotopical groups},
  author = {Tobias Barthel and Natalia Castellana and Drew Heard and Gabriel Valenzuela},
  journal= {arXiv preprint arXiv:1711.03491},
  year   = {2019}
}

Comments

Corrected discussion of Chouinard's theorem for homotopical groups; accepted for publication in Advances in Mathematics

R2 v1 2026-06-22T22:41:16.475Z