On Rough Ideals in Γ-semigroups
Natesan Thillaigovindan, Veerappan Chinnadurai, V. Subha · 2012
In this paper we discuss the concepts of rough quasi-ideals and rough bi-ideals in a Γ-semigroup. We study some properties of the lower and upper approximations of such ideals with respect to a congruence relation in Γ-semigroup .