2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/69414We carry the argument used in the proof of the Theorem of Denjoy over to the quasiperiodically forced case. Thus we derive that if a system of quasiperiodically forced circle diffeomorphisms with bounded variation of the derivative has no invariant graphs with a certain kind of topological regularity, then the system is topologically transitive.Dynamical Systems37C70; 37C60; 37H15text