Journal of applied mathematics & informatics
- 제25권1_2호
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- Pages.551-562
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- 2007
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- 2734-1194(pISSN)
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- 2234-8417(eISSN)
ROUGH SET THEORY APPLIED TO INTUITIONISTIC FUZZY IDEALS IN RINGS
- Jun, Young-Bae (Department of Mathematics Education, Gyeongsang National University) ;
- Park, Chul-Hwan (Department of Mathematics, University of Ulsan) ;
- Song, Seok-Zun (Department of Mathematics, Cheju National University)
- 발행 : 2007.09.30
초록
This paper concerns a relationship between rough sets, intuitionistic fuzzy sets and ring theory. We consider a ring as a universal set and we assume that the knowledge about objects is restricted by an intuitionistic fuzzy ideal. We apply the notion of intutionistic fuzzy ideal of a ring for definitions of the lower and upper approximations in a ring. Some properties of the lower and upper approximations are investigated.