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Vanishing of the Hochschild cohomology for some self-injective special biserial algebra of rank four
Published 1 Jun 2014 in math.RT | (1406.0159v1)
Abstract: In this paper, we determine the dimensions of the Hochschild cohomology groups of some self-injective special biserial algebra whose Grothendieck group is of rank $4$. This result provides us with a negative answer to Happel's question in [H].
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