The Chang-Skjelbred lemma and generalizations
Algebraic Topology
2025-07-04 v1
Abstract
We review the Chang-Skjelbred lemma for torus-equivariant cohomology and discuss several generalizations of it: to other coefficients, other groups and also to syzygies in equivariant cohomology and the Atiyah-Bredon sequence.
Keywords
Cite
@article{arxiv.2306.05165,
title = {The Chang-Skjelbred lemma and generalizations},
author = {Matthias Franz},
journal= {arXiv preprint arXiv:2306.05165},
year = {2025}
}
Comments
9 pages; based on a talk given at an AMS Sectional Meeting, March 2022