An embedding version of Rubin's theorem
Dynamical Systems
2026-02-23 v1 Group Theory
Abstract
Rubin's theorem asserts that if and are Rubin actions, then any group isomorphism induces an equivariant homeomorphism . We provide an embedding version of Rubin's theorem highlighting group embeddings that induce a spatial equivariant map of a certain form. We further showcase instances of such embeddings between generalized Brin-Thompson groups.
Cite
@article{arxiv.2602.18197,
title = {An embedding version of Rubin's theorem},
author = {Jan Gundelach},
journal= {arXiv preprint arXiv:2602.18197},
year = {2026}
}
Comments
9 pages