Journal of the Egyptian Mathematical Society · 2013 · 10 citations · 17 references
Natural SciencesMathematicsDiscrete MathematicsSet TheoryTopologyMappingSet-theoretic TopologyTopological SpacesContinuous MappingsMapping SpacesOpen SetsRough Set Theory
The concept of M-open sets [1] can be applied in modifications of rough set approximations [2], [3] which is widely applied in many application fields. The aim of this paper is to introduce and investigate some new classes of topological mappings called M-continuous mappings via M-open sets. Also, M-irresolute mappings which are stronger than M-continuous mappings are studied and the relationships between these mappings are investigated. Several properties of these new notions have been discussed and the connections between them are studied.
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Zdzis aw Pawlak · International Journal of Parallel Programming · 1982 · 12.1K citations
Semi-Open Sets and Semi-Continuity in Topological Spaces
Norman Levine · American Mathematical Monthly · 1963 · 1.3K citations
On some classes of nearly open sets
Olav Njåstad · Pacific Journal of Mathematics · 1965 · 1.1K citations · Full text