On joins and intersections of subgroups in free groups
Group Theory
2016-07-19 v1 Geometric Topology
Abstract
We study graphs of (generalized) joins and intersections of finitely generated subgroups of a free group. We show how to disprove a lemma of Imrich and M\"uller on these graphs and how to repair this lemma.
Cite
@article{arxiv.1607.04890,
title = {On joins and intersections of subgroups in free groups},
author = {Sergei V. Ivanov},
journal= {arXiv preprint arXiv:1607.04890},
year = {2016}
}
Comments
14 pages, 4 figures