Electronic Version 19 (1994), 79-85

Camillo Costantini, Alessandro Fedeli and Jan Pelant

The aim of this paper is to give a characterization of those spaces having a \sigma-disjoint base or a \sigma-disjoint \pi-base by means of some quasi-development-like properties. Moreover we show that a space is almost countably subcompact iff it has a countably complete \pi-base.

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volume 19: table of contents
topology proceedings Electronic Version