The complex of cuts in a Stone space
Geometric Topology
2025-08-12 v2 Group Theory
Abstract
Stone's representation theorem asserts a duality between Boolean algebras on the one hand and Stone space, which are compact, Hausdorff, and totally disconnected, on the other. This duality implies a natural isomorphism between the homeomorphism group of the space and the automorphism group of the algebra. We introduce a complex of cuts on which these groups act, and prove that when the algebra is countable and the space has at least five points, that these groups are the full automorphism group of the complex.
Cite
@article{arxiv.2408.06994,
title = {The complex of cuts in a Stone space},
author = {Beth Branman and Robert Alonzo Lyman},
journal= {arXiv preprint arXiv:2408.06994},
year = {2025}
}
Comments
v2: revised according to referee comments. theorem numbering has changed