In this paper, we introduce the notion of $RL$-$T_i$ spaces for $i = 1,2,3,4$ by using the $RL$-closed sets. We investigate their characterizations for such notions and established some relations among these spaces.
Keywords and Phrases
$RL$-open sets, $RL$-closed sets, $RL$-$T_1$ space, $RL$ - Hausdorff space, $RL$-$T_3$ space, $RL$-$T_4$ space.
A.M.S. subject classiﬁcation
54A05, 54A10, 54D10.