NEW APPROACH TO COVERING ROUGH SETS VIA RELATIONS

The present paper is devoted to discussion of extended covering rough sets from the relations point of view. In fact, we give new definitions to the lower and the upper approximations using a binary general relation. Moreover, our approach represent new generalizations of Pawlak approaches. New closure operators derived from relation are investigated too. AMS Subject Classification: 54A05, 54B05, 54C05