2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/171723We introduce and study (metrically) quarter-stratifiable spaces and then apply them to generalize Rudin and Kuratowski-Montgomery theorems about the Baire and Borel complexity of separately continuous functions.19 pagesGeneral Topology(Metrically) quarter-stratifiable spaces and their applications in the theory of separately continuous functionstext