Roughness of (∈*, ∈* ∨ q*)-Fuzzy Ideals in Semigroup
V. Subha, Natesan Thillaigovindan, Veerappan Chinnadurai, Pandluri Dhanalakshmi · Journal of Physics Conference Series · 2021
Abstract In this paper, we introduce the notions of intervalvalued rough (∈ *, ∈ * ∨ q*)-fuzzy subsemigroup, intervalvalued rough (∈ *, ∈ * ∨ q*)-fuzzy ideals, intervalvalued rough (∈ *, ∈ * ∨ q*)-fuzzy bi-ideal, intervalvalued rough (∈ *, ∈ * ∨ q*)-fuzzy interior ideal and intervalvalued rough (∈ *, ∈ * ∨ q*)-fuzzy quasi ideal as a further generalization of ideals in semigroups and study the properties of these structures.