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Si-open sets ans Si-continuity in bitopological spacesDOI: 10.5556/j.tkjm.43.2012.81-97 Keywords: Si-open , Si-continuous functions and ij-almost Si-continuous functions , ij-almost continuous functions Abstract: In this paper we introduce and de ne a new class of sets, called Si-open sets,in bitopological spaces. By using this set we introduce the notion of Si-continuity and investigate some of its properties. In particular, Si-open sets and Si-continuity are used to extend some known results in topological spaces.
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