Almost $\beta$-Regular Spaces and Almost $rg\beta$-Closed Functions
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Keywords:
$\beta$-open and regular open sets, almost regular and almost $\beta$-regular spaces, $\beta$-$g\beta$-closed, $\beta$-$rg\beta$-closed, almost $\beta$-closed, almost $rg\beta$-closed, almost continuous functionsAbstract
The aim of this paper is to introduce and study a new class of spaces, namely almost $\beta$-regular spaces which are generalizations of the concepts of almost regular spaces and $\beta$-regular spaces and to obtain some characterizations of almost $\beta$-regular spaces. Further, by using $rg\beta$-closed sets, we define almost $rg\beta$-closed functions and to obtain preservation theorems of almost $\beta$-regular spaces. The relationships among p-regular, $\beta$-regular, almost regular, almost p-regular, almost $\beta$-regular spaces are investigated. The main result of this paper is that almost $\beta$-regularity is preserved under M-$\beta$-open $\beta$-$rg\beta$-closed surjective R-maps.
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