Rough approximations in a general approximation space and their fundamental properties

DOI10.1080/03081070701250994zbMath1158.68537OpenAlexW2137548270MaRDI QIDQ3603706

M. Mahdavipour, Bijan Davvaz

Publication date: 18 February 2009

Published in: International Journal of General Systems (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081070701250994

zbMATH Keywords

rough setlower approximationupper approximationgeneral approximation space

Mathematics Subject Classification ID

Computing methodologies for information systems (hypertext navigation, interfaces, decision support, etc.) (68U35)

Related Items (15)

Generalization of Pawlak's approximations in hypermodules by set-valued homomorphisms ⋮ Approximations in a module by using set-valued homomorphisms ⋮ Near approximations in rings ⋮ Reduction of an information system ⋮ Generalized hesitant fuzzy rough sets (GHFRS) and their application in risk analysis ⋮ Pawlak's approximations in \(\Gamma\)-semihypergroups. ⋮ On the order-theoretic properties of lower concept formula systems ⋮ A kind of new rough set: Rough soft sets and rough soft rings ⋮ Upper M-approximate operators and M-closed sets1 ⋮ Approximations in a semigroup by using a neighbourhood system ⋮ Abstract Concept Lattices ⋮ Generalized lower and upper approximations in a ring. ⋮ Roughness in MV-algebras ⋮ Roughness in Cayley graphs ⋮ Rough Intuitionistic Fuzzy Information Systems

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