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γ and β Approximations via General Ordered Topological Spaces

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DOI: 10.4236/am.2016.714136    1,201 Downloads   1,544 Views


In this paper, we introduce the concepts of g and b approximations via general ordered topological approximation spaces. Also, increasing (decreasing) g, b boundary, positive and negative regions are given in general ordered topological approximation spaces (GOTAS, for short). Some important properties of them were investigated. From this study, we can say that studying any properties of rough set concepts via GOTAS is a generalization of Pawlak approximation spaces and general approximation spaces.

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Abo-Elhamayel, M. (2016) γ and β Approximations via General Ordered Topological Spaces. Applied Mathematics, 7, 1580-1588. doi: 10.4236/am.2016.714136.

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