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Last-modified: 2010-12-26 (日) 00:40:38

Definition Edit

A topological space is said to be σ-orthocompact iff every open cover has a σ-interior preserving (i.e. countable union of interior preserving? families) open refinement.

Reference Edit

Jianjun Wang and Peiyong Zhu, σ-orthocompactness in product spaces, Internat. J. Math. Comp. Sci. 6:1 (2010)