The Hochschild Cohomology ring of preprojective algebras of type Ln

2010/10/13 by Estefanía Andreu Juan, Juan, Estefanía Andreu
Mathematics · #FOS: Mathematics #Representation Theory (math.RT) #math.RT

paper · pdf · doi:10.48550/arxiv.1010.2790

37 pages

arxiv created 2011/09/30 · arxiv updated 2011/10/03

Abstract

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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