$1$-cohomology of simplicial amalgams of groups
Group Theory
2015-09-16 v1 Combinatorics
Category Theory
Abstract
We develop a cohomological method to classify amalgams of groups. We generalize this to simplicial amalgams in any concrete category. We compute the non-commutative 1-cohomology for several examples of amalgams defined over small simplices.
Keywords
Cite
@article{arxiv.1509.04679,
title = {$1$-cohomology of simplicial amalgams of groups},
author = {Rieuwert J. Blok and Corneliu G. Hoffman},
journal= {arXiv preprint arXiv:1509.04679},
year = {2015}
}