semi-T_{1/2}

Definition

• A topological space (X, τ) is called a semi-T_{1/2} space if every sg-closed set is semi-closed

Property

• Every semi-T_{1/2} space is a semi-T_0 space.

Reference

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