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http://dx.doi.org/10.11568/kjm.2011.19.2.219

THE PROPERTIES OF ROUGH APPROXIMATIONS  

Kim, Yong Chan (Department of Mathematics, Natural Science Gangneung-Wonju National University)
Ko, Jung Mi (Department of Mathematics, Natural Science Gangneung-Wonju National University)
Publication Information
Korean Journal of Mathematics / v.19, no.2, 2011 , pp. 219-232 More about this Journal
Abstract
We investigated the properties of rough approximations induced by two families of preordered sets and closure systems. We study the relations among the lower and upper rough approximations, closure and interior systems, preordered sets.
Keywords
Preordered sets; lower and upper rough approximations; closure and interior systems; product and subspaces of preordered spaces;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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