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Batalin-Vilkovisky structure over the Hochschild cohomology ring of a group algebra
Published 14 May 2014 in math.KT | (1405.3418v2)
Abstract: We realize explicitly the well-known additive decomposition of the Hochschild cohomology ring of a group algebra in the elements level. As a result, we describe the cup product, the Batalin-Vilkovisky operator and the Lie bracket in the Hochschild cohomology ring of a group algebra.
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