2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/119491We analyze some relations between quasi-Hopf smash products and certain twisted tensor products of quasialgebras. Along the way we obtain also some results of independent interest, such as a duality theorem for finite dimensional quasi-Hopf algebras and a universal property for generalized diagonal crossed products.30 pagesQuantum Algebra16W30text