2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/174647In this paper we define an associative stringy product for the twisted orbifold K-theory of a compact, almost complex orbifold X. This product is defined on the twisted K-theory of the inertia orbifold of X, where the twisting gerbe is assumed to be in the image of the inverse transgression map.Minor changes and rearrangement of materialAlgebraic Topology55N15text