The Nucleus of a Compact Lie Group, and Support of Singularity Categories
Algebraic Topology
2024-07-30 v2 Commutative Algebra
Abstract
In this paper we adapt the notion of the nucleus defined by Benson, Carlson, and Robinson to compact Lie groups in non-modular characteristic. We show that it describes the singularities of the projective scheme of the cohomology of its classifying space. A notion of support for singularity categories of ring spectra (in the sense of Greenlees and Stevenson) is established, and is shown to be precisely the nucleus in this case, consistent with a conjecture of Benson and Greenlees for finite groups.
Cite
@article{arxiv.2405.00457,
title = {The Nucleus of a Compact Lie Group, and Support of Singularity Categories},
author = {Thomas Peirce},
journal= {arXiv preprint arXiv:2405.00457},
year = {2024}
}
Comments
Minor edits from reviewer comments