MATEMATIČKI VESNIK
МАТЕМАТИЧКИ ВЕСНИК



MATEMATIČKI VESNIK
On $P_{\Sigma}$ and weakly $P_{\Sigma}$ spaces
M. Khan, T. Noiri and B. Ahmad

Abstract

In this paper, we point out that properties $P_{\Sigma}$ due to Wang [18] and strongly $s$-regular due to Ganster [5] are equivalent to each other. We further study these spaces and weakly-$P_{\Sigma}$ spaces defined by the second author [15].

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Keywords: $P_{\Sigma}$, weakly-$P_{\Sigma}$, strongly $s$-regular, $s^*$-regular, $s$-regular, almost-regular, regular closed, semi-open, almost-continuous, almost-open.

MSC: 54D10, 54B05 54C08

Pages:  87$-$93     

Volume  48 ,  Issue  3$-$4 ,  1996