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Polyhedral products and commutator subgroups of right-angled Artin and Coxeter groups. (English. Russian original) Zbl 1397.20040

Sb. Math. 207, No. 11, 1582-1600 (2016); translation from Mat. Sb. 207, No. 11, 105-126 (2016).
Summary: We construct and study polyhedral product models for classifying spaces of right-angled Artin and Coxeter groups, general graph product groups and their commutator subgroups. By way of application, we give a criterion for the commutator subgroup of a graph product group to be free, and provide an explicit minimal set of generators for the commutator subgroup of a right-angled Coxeter group.

MSC:

20F36 Braid groups; Artin groups
20F55 Reflection and Coxeter groups (group-theoretic aspects)
20F65 Geometric group theory
20F12 Commutator calculus
55R35 Classifying spaces of groups and \(H\)-spaces in algebraic topology
57M07 Topological methods in group theory