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The first Hochschild cohomology group of a schurian cluster-tilted algebra

✍ Scribed by Ibrahim Assem; María Julia Redondo

Publisher
Springer
Year
2008
Tongue
English
Weight
234 KB
Volume
128
Category
Article
ISSN
0025-2611

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group of linear automorphisms of A . In this paper, we compute the multiplicative n ⅷ Ž G . structure on the Hochschild cohomology HH A of the algebra of invariants of n ⅷ Ž 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