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<λ-collectionwise Hausdorff

Last-modified: 2011-04-16 (土) 14:49:40

Definition Edit

  • A topological space (X,τ) is said to be collectionwise Hausdorff (cwH) if every closed discrete? collection Y of points of X, |Y|<λ, can be screened.

Reference Edit

  • Willam G. Fleissner, On λ collection Hausdorff spaces, Topology Proceedings 2, (1977, 445-456.