Weights for $\ell$-local compact groups
Group Theory
2023-09-11 v4 Algebraic Topology
Representation Theory
Abstract
In this note, we initiate the study of -weights for an -local compact group over a discrete -toral group with discrete torus . Motivated by Alperin's Weight Conjecture for simple groups of Lie-type, we conjecture that when is the unique maximal abelian subgroup of up to -conjugacy and every element of is -fused into , the number of weights of is bounded above by the number of ordinary irreducible characters of its Weyl group. By combining the structure theory of with the theory of blocks with cyclic defect group, we are able to give a proof of this conjecture in the case when is simple and . We also propose and give evidence for an analogue of the height zero case of Robinson's Ordinary Weight conjecture in this setting.
Cite
@article{arxiv.2208.12762,
title = {Weights for $\ell$-local compact groups},
author = {Jason Semeraro},
journal= {arXiv preprint arXiv:2208.12762},
year = {2023}
}
Comments
12 pages