Topological characterizations of covering for special covering-based upper approximation operators

  title={Topological characterizations of covering for special covering-based upper approximation operators},
  author={Xun Ge and Xiaole Bai and Ziqiu Yun},
  journal={Inf. Sci.},
The relationships among properties of covering approximation operators and their corresponding coverings have attracted intensive research in recent years. In particular, those among topological properties have drawn special attention because of their important applications in rough set theory. In this paper, we give topological characterizations of covering C for covering-based upper approximation operators FH, SH, TH and RH to be closure operators. We also give intuitive characterizations of… CONTINUE READING

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