The relationships among properties of covering approximation operators and their
corresponding coverings have attracted intensive research in recent years. In particular …

There is a close analogy and similarity between topology and rough set theory. As, the
leading idea of this theory is depended on two approximations, namely lower and upper …

Background The concept of near open sets is a potent tool that empowers researchers to
achieve a more encompassing approximation of rough sets, thereby enhancing the …

In this paper, we define two conditions of symmetry for the covering C in a covering-based
approximation space (U, C). By using these conditions and the triangle chain condition, we …

We proposed in this paper a new decision information retrieval model using rough sets that
are generated by general binary relations. This model depends on generalized rough sets to …

In this paper we used the MSA− space, η− open sets and αη-open sets to introduce a new
approximation of uncertain sets as a mathematical tool to modify the approximations …

The notion of rough set was originally proposed by Pawlak (1982)[6]. Carmel Richard et
al.[3] introduce a new topology called rough topology in terms of the lower and upper …

The purpose of the study is to introduce a new class of continuous function among the nano
product topology and study the behaviour of these functions. We characterise the properties …