Semi (1, 2)‎*-maximal soft (1, 2)‎*-pre-open sets and semi (1, 2)‎*-minimal soft (1, 2)‎*-pre-closed sets in soft bitopological spaces

Abstract EN

In this paper, we introduce and study new types of soft open sets and soft closed sets in soft bitopological spaces (X,~,~2,E), 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.