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arXiv · 2103.13695

Symmetric Hochschild cohomology of twisted group algebras

Tiberiu Coconet·Constantin-Cosmin Todea
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Abstract

We show that there is an action of the symmetric group on the Hochschild cochain complex of a twisted group algebra with coefficients in a bimodule. This allows us to define the symmetric Hochschild cohomology of twisted group algebras, similarly to th construction of symmetric group cohomology due to Staic. We give explicit embeddings and connecting homomorphisms between the symmetric cohomology spaces and symmetric Hochschild cohomology of twisted group algebras.

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Tiberiu Coconet, Constantin-Cosmin Todea. 2021-03-25. Symmetric Hochschild cohomology of twisted group algebras. https://arxiv.org/abs/2103.13695

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