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weakly Hausdorff

Last-modified: 2011-11-15 (火) 13:36:31

Definition Edit

  • A topological space (X,τ) is called weakly Hausdorff if each singleton is δ-closed.

Property Edit

  • Every weakly Hausdorff S-closed? space is extremally disconnected? and Urysohn.

Reference Edit

  • Dontchev, J.; Popvassilev, S.; Stavrova, D., On the η-expansion topology for the co-semi-regularization and mildly Hausdorff spaces., (English summary), Acta Math. Hungar. 80 (1998), no. 1-2, 9-19.