2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/209658The deformation bicomplex of a module-algebra over a bialgebra is constructed. It is then applied to study algebraic deformations in which both the module structure and the algebra structure are deformed. The cases of module-coalgebras, comodule-(co)algebras, and (co)module-bialgebras are also considered.To appear in Homology, Homotopy and ApplicationsAlgebraic TopologyK-Theory and HomologyRings and Algebras16E40 (Primary); 16W99 (Secondary)text