Fuzzy Sets and Systems
The lower and upper approximations in a fuzzy group
Information Sciences: an International Journal
Information Sciences: an International Journal
Constructive and algebraic methods of the theory of rough sets
Information Sciences: an International Journal
Fuzzy Sets and Systems
Rough Sets: Theoretical Aspects of Reasoning about Data
Rough Sets: Theoretical Aspects of Reasoning about Data
Rough Sets in Knowledge Discovery 2: Applications, Case Studies, and Software Systems
Rough Sets in Knowledge Discovery 2: Applications, Case Studies, and Software Systems
Algebraic Structures of Rough Sets
RSKD '93 Proceedings of the International Workshop on Rough Sets and Knowledge Discovery: Rough Sets, Fuzzy Sets and Knowledge Discovery
Information Sciences—Informatics and Computer Science: An International Journal
A New view of the approximations in H v -groups
Soft Computing - A Fusion of Foundations, Methodologies and Applications
Generalized Fuzzy Sub-hyperquasigroups of Hyperquasigroups
Soft Computing - A Fusion of Foundations, Methodologies and Applications
n-hypergroups and binary relations
European Journal of Combinatorics
Information Sciences: an International Journal
Roughness based on fuzzy ideals
Information Sciences: an International Journal
Roughness in n-ary hypergroups
Information Sciences: an International Journal
Algebraic aspects of generalized approximation spaces
International Journal of Approximate Reasoning
Generalized lower and upper approximations in a ring
Information Sciences: an International Journal
Computers & Mathematics with Applications
Fuzzy hyperrings (Hv-rings) based on fuzzy universal sets
Information Sciences: an International Journal
Approximations in hypergroups and fuzzy hypergroups
Computers & Mathematics with Applications
The ϑ-lower and T-upper fuzzy rough approximation operators on a semigroup
Information Sciences: an International Journal
Rough set theory applied to lattice theory
Information Sciences: an International Journal
Information Sciences: an International Journal
Inheritance examples of algebraic hyperstructures
Information Sciences: an International Journal
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This paper presents a relationship between rough sets and hypergroup theory. We analyze the lower and upper approximations of a subset, with respect to an invertible subhypergroup and we consider some particular situations. Moreover, the notion of a rough subhypergroup is introduced. Finally, fuzzy rough subhypergroups are introduced and characterized.