2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/112532In this expository paper written for physicists and geometers we introduce the notions of TQFT and of orbifold. Then we survey the construction of TQFT's originating from orbifolds such as Chen-Ruan theory and Orbifold String Topology.27 pages, 9 figuresHigh Energy Physics - TheoryAlgebraic GeometryAlgebraic Topologytext