Algebra Structure on the Hochschild Coho
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Mariano Suarez Alvarez
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Article
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2002
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Elsevier Science
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English
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group of linear automorphisms of A . In this paper, we compute the multiplicative n โ ท ลฝ G . structure on the Hochschild cohomology HH A of the algebra of invariants of n โ ท ลฝ G . G. We prove that, as a graded algebra, HH A is isomorphic to the graded n algebra associated to the center of the group al