Λg-CLOSED SETS IN IDEAL TOPOLOGICAL SPACES

Λg-CLOSED SETS IN IDEAL TOPOLOGICAL SPACES

− The notion of Λg-closed sets is introduced in ideal topological spaces. Characterizations and properties of IΛg-closed sets and IΛg-open sets are given. A characterization of normalspaces is given in terms of IΛg-open sets. Also, it is established that an IΛg-closed subset of anI-compact space is I-compact