2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/150057A formula for calculating the Lefschetz number of an automorphism acting on a crepant resolution for a quotient of a Kahler manifold derived from an equivariant version of McKay correspondence. The latter is proven in some cases. As an application the Lefschetz numbers of of involutions acting on Calabi-Yau threefolds and their mirrors are compared.11 pages, PlainTexAlgebraic Geometry14J32text