semi star generalized closed

Definition

• A set S of a topological space (X,τ) is called semi star generalized closed (s*g-closed) if cl(S) ⊆ U whenever S ⊆ U and U is semi-open in X.

Reference

• Chandrasekhara Rao, K.; Narasimhan, D., T_S-spaces. (English summary), Proc. Nat. Acad. Sci. India Sect. A 77 (2007), no. 4, 363-366.