http://www.saber.ula.ve/handle/123456789/30662 2009 2026-05-15T11:35:08Z http://www.saber.ula.ve/handle/123456789/30663 Minimal R1, minimal regular and minimal presober topologies Colasante Martínez, María Luisa; Van der Zypen, D. By means of filters, minimal R1 and minimal regular topologies are characterized on suitable intervals consisting of non-trivial R0 topologies. 2010-03-18T19:08:20Z