2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/159215We prove that the orbifold quantum ring is preserved under singular symplectic flops. Hence we verify Ruan's conjecture for this case.34pagesAlgebraic GeometrySymplectic Geometry14E30;53D45Ruan's Conjecture on Singular symplectic flopstext