Generalized τ1τ2-Closed Sets in Ideal Bitopological Spaces

Chalongchai Klanarong, Chawalit Boonpok

Abstract

This paper deals with the concept of $\mathscr{I}$-g-$\tau_1\tau_2$-closed sets in ideal bitopological spaces. $\mathscr{I}$-g-$\tau_1\tau_2$-normal and $\mathscr{I}$-g-$\tau_1\tau_2$-regular spaces are introduced and various characterizations are given. Several characterizations of $\mathscr{I}^{\star\star}$-$R_0$-spaces are discussed.