The Hochschild Cohomology ring of preprojective algebras of type Ln
classification
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keywords
cohomologyhochschildringpreprojectivetypealgebraalgebrascharacteristic
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We compute the Hochschild Cohomology of a finite-dimensional preprojective algebra of generalized Dynkin type Ln over a field of characteristic different from 2 . In particular, we describe the ring structure of the Hochschild Cohomology ring under the Yoneda product by giving an explicit presentation by generators and relations.
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