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arXiv · 1509.04679

$1$-cohomology of simplicial amalgams of groups

Rieuwert J. Blok·Corneliu G. Hoffman
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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.

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Rieuwert J. Blok, Corneliu G. Hoffman. 2015-09-15. $1$-cohomology of simplicial amalgams of groups. https://doi.org/10.1007/s10801-012-0374-0

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