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A vanishing criterion for cup products and Massey products in bounded cohomology

Published 24 Jul 2024 in math.GR and math.GT | (2407.17034v1)

Abstract: We give a uniform vanishing criterion for products in bounded cohomology. This allows us to reprove and extend previous vanishing results for cup products and Massey triple products in the bounded cohomology of free groups and in the equivariant bounded cohomology of group actions on CAT(0) cube complexes.

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