2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/131768In this paper, we compute the product structure of the Hochschild cohomology of preprojective algebras of quivers of type D and E over a field of characteristic zero.55 pagesRepresentation TheoryQuantum AlgebraThe product in the Hochschild cohomology ring of preprojective algebras of Dynkin quiverstext