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Last-modified: 2012-03-29 (木) 23:15:13

Definition Edit

  • Let (X, τ) be a topological space. A subset S ⊆ X is called semi-closed if the complement X-B is a semi-open set.

Reference Edit

  • Bhattacharyya Paritosh, Lahiri B. K., Semigeneralized closed sets in topology., Indian J. Math. 29 (1987), no. 3, 375-382 (1988).