2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64374We establish a correspondence between orbifold and singular elliptic genera of a global quotient. While the former is defined in terms of the fixed point set of the action, the latter is defined in terms of the resolution of singularities. As a byproduct, the second quantization formula of Dijkgraaf, Moore, Verlinde and Verlinde is extended to arbitrary Kawamata log-terminal pairs.39 pages, 1 figure, LatexAlgebraic Geometrytext