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arXiv · 1103.3218

The Lie structure on the Hochschild cohomology of a modular group algebra

Selene Sanchez-Flores
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Abstract

We prove that the Gerstenhaber bracket on the Hochschild cohomology of the group algebra of a cyclic group over a field of positive characteristic is not trivial. In this case, we relate the Lie algebra structure on the odd degrees of the Hochschild cohomology with a Witt-type algebra.

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Selene Sanchez-Flores. 2011-03-16. The Lie structure on the Hochschild cohomology of a modular group algebra. https://arxiv.org/abs/1103.3218

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