In this paper, we introduce and study new types of soft open sets and soft closed sets in soft bitopological spaces , namely, (1,2)*-maximal soft open sets, (1,2)*-maximal soft (1,2)*-pre-open sets, semi (1,2)*-maximal soft (1,2)*-pre-open sets, (1,2)*-maximal soft closed sets, (1,2)*-maximal soft (1,2)*-pre-closed sets, (1,2)*-minimal soft open sets, (1,2)*-minimal soft (1,2)*-pre-open sets, (1,2)*-minimal soft closed sets, (1,2)*-minimal soft (1,2)*-pre-closed sets, and semi (1,2)*-minimal soft (1,2)*-pre-closed sets. Also, properties and the relation among these concepts have been studied.
Keywords: (1,2)*-maximal soft (1,2)*-pre-open set, (1,2)*-minimal soft (1,2)*-pre-open sets, (1,2)*-maximal soft (1,2)*-pre-closed sets, (1,2)*-minimal soft (1,2)*-pre-closed sets, semi (1,2)*-maximal soft (1,2)*-pre-open sets, semi (1,2)*-minimal soft (1,2)*-pre-closed set. |