Pure braid groups are not residually free
Group Theory
2019-08-27 v1 Geometric Topology
Abstract
We show that the Artin pure braid group on at least four strands is not residually free. Our results also show that the pure braid group on at least three strands has corank two.
Cite
@article{arxiv.1106.4602,
title = {Pure braid groups are not residually free},
author = {Daniel C. Cohen and Michael Falk and Richard Randell},
journal= {arXiv preprint arXiv:1106.4602},
year = {2019}
}