2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/115626We give some general results on the ring structure of Hochschild cohomology of smash products of algebras with Hopf algebras. We compute this ring structure explicitly for a large class of finite dimensional Hopf algebras of rank one.14 pages, submittedRings and AlgebrasQuantum Algebratext