Intermediate subgroups of braid groups are not bi-orderable
Geometric Topology
2025-10-30 v1 Algebraic Topology
Abstract
Let be the disk or a compact, connected surface without boundary different from the sphere and the real projective plane , and let be a compact, connected surface (possibly with boundary). It is known that the pure braid groups of are bi-orderable, and, for , that the full braid groups of are not bi-orderable. The main purpose of this article is to show that for all , any subgroup of that satisfies is not bi-orderable.
Keywords
Cite
@article{arxiv.2510.24947,
title = {Intermediate subgroups of braid groups are not bi-orderable},
author = {R. M. de A. Cruz},
journal= {arXiv preprint arXiv:2510.24947},
year = {2025}
}
Comments
14 pages, 1 figure