Resumen de A relation between closure operators on a small category and its category of presheaves
In this paper we show that each factorization structure on a small category , satisfying certain conditions, yields a presheaf on and a morphism of presheaves . We then give connections, and set up one to one correspondences, between subclasses of the following classes: (a) closure operators on (b) subobjects of (c) morphisms from to (d) weak Lawvere¿Tierney topologies (e) weak Grothendieck topologies (f) closure operators on
