Homology computations for complex braid groups

Details Homology computations for complex braid groups Homology computations for complex braid groups

2010-11-19

arxiv.org/abs/1011.4375v1

Mathematics

Algebraic Topology

52 pages

Scientific paper

Complex braid groups are the natural generalizations of braid groups associated to arbitrary (finite) complex reflection groups. We investigate several methods for computing the homology of these groups. In particular, we get the Poincar\'e polynomial with coefficients in a finite field for one large series of such groups, and compute the second integral cohomology group for all of them. As a consequence we get non-isomorphism results for these groups.

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