2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/229422We study the non-abelian Hopf cohomology theory of Radford products with coefficients in a comodule algebra. We show that these sets can be expressed in terms of the non-abelian Hopf cohomology theory of each factor of the Radford product. We write down an exact sequence relating these objects. This allows to compute explicitly the non-abelian Hopf cohomology sets in large classes of examples.K-Theory and HomologyQuantum Algebra18G50, 16W30 (Primary) 14A22, 16S35, 20J06, 55U10 (Secondary)text