2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/113975Our main theorem is an improvement of the Criterion of Kanev about Prym-Tyurin varieties induced by correspondences, which includes correspondences with fixed points. We give some examples of Prym--Tyurin varieties using this criterion.12 pagesAlgebraic Geometrytext