Kar, Ashish; Bhattacharyya, Paritosh Some weak separation axioms. (English) Zbl 0736.54013 Bull. Calcutta Math. Soc. 82, No. 5, 415-422 (1990). Summary: Pre-open sets are used to define some weak separation axioms and to study some of their basic properties. The implications of these axioms among themselves and with the known axioms \(T_ i\) and semi-\(T_ i\) (i=0,1,2) are investigated. Cited in 8 Documents MSC: 54D10 Lower separation axioms (\(T_0\)–\(T_3\), etc.) Keywords:pre-open sets PDFBibTeX XMLCite \textit{A. Kar} and \textit{P. Bhattacharyya}, Bull. Calcutta Math. Soc. 82, No. 5, 415--422 (1990; Zbl 0736.54013)