2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/162530We compare several quasi-Frobenius-type properties for corings that appeared recently in literature and provide several new characterizations for each of these properties. By applying the theory of Galois comodules with a firm coinvariant ring, we can characterize a locally quasi-Frobenius (quasi-co-Frobenius) coring as a locally projective generator in its category of comodules.23 pagesRings and Algebras16W30, 16L60, 16D90text