Presentations for the cohomology rings of tree braid groups
Algebraic Topology
2007-05-23 v1 Group Theory
Abstract
If G is a finite graph and n is a natural number, then the n-strand braid group of G is the fundamental group of the configuration space of n points on G. This article gives a complete computation of the integral cohomology rings of the n-strand braid groups in case G is a tree. Some of the argument builds on earlier joint work with Lucas Sabalka.
Keywords
Cite
@article{arxiv.math/0610424,
title = {Presentations for the cohomology rings of tree braid groups},
author = {Daniel Farley},
journal= {arXiv preprint arXiv:math/0610424},
year = {2007}
}
Comments
25 pages, 14 figures