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Cohomology of Fuchsian Groups and Non-Euclidean Crystallographic Groups (1910.00519v3)
Published 1 Oct 2019 in math.GR and math.GT
Abstract: For each geometrically finite 2-dimensional non-Euclidean crystallographic group (NEC group), we compute the cohomology groups. In the case where the group is a Fuchsian group, we also determine the ring structure of the cohomology.
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