Generalized lower and upper approximations in a ring

Information Sciences

Volumn 180, Issue 9, 2010, Pages 1759-1768

  Yamak, S ^a   Kazanci, O ^a   Davvaz, B ^b  

^a KARADENIZ TECHNICAL UNIVERSITY   (Turkey)

^b YAZD UNIVERSITY   (Iran)

Author keywords

Lower approximations; Rough ideals; Rough sets; Rough subrings; Set valued homomorphism; Set valued mapping; Upper approximations

Indexed keywords

LOWER AND UPPER APPROXIMATIONS; LOWER APPROXIMATION; ROUGH SET; SET-VALUED MAPPING; UPPER APPROXIMATION;

ROUGH SET THEORY;

MAPPING;

EID: 76349097335     PISSN: 00200255     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.ins.2009.12.026     Document Type: Article

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