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Last-modified: 2011-08-08 (月) 22:25:48

Definition Edit

κ is a cardinality.
A topological space is said to be κ-orthocompact if every open cover with cardinality less than or equal to κ has an interior-preserving open refinement.

Remark Edit

Reference Edit

N. Kemoto, Y. Yajima, Orthocompactness in infinite product spaces, Proc. Amer. Math. Soc. Vol.120 No.2 (1994)