Generalized $\delta$-$s\bigwedge _{ij}$-sets in bitopological spaces

Abstract

The concepts of $ij-\delta-$semi closed and $ij-\delta-$semi open sets in bitopological spaces are introduced and studied. Also, the notions of {$\delta -s\bigwedge _{ij} -$}sets and {$g\delta -s\bigwedge _{ij} -$}sets are investigated. Furthermore , a new closure operator called $Cl_{\delta }^{s\bigwedge _{ij} } $ on the bitopological space $(X,\tau _{1},\tau _{2})$ is defined and associated topology $\tau _{\delta }^{s\bigwedge _{ij} }$ is given.