Spherical interval valued fuzzy ideals which coincide in semigroups
Pannawit Khamrot, Thiti Gaketem · Journal of Mathematics and Computer Science · 2023
The concept of spherical fuzzy set was introduced by Gun et al. in 2018. It is generalization of Pythagorean fuzzy set. Our main paper, we give the concepts of spherical interval valued fuzzy ideals in semigroups, and properties of a spherical fuzzy ideal in semigroups with prove. Moreover, we investigate necessary and sufficient conditions of coincidences spherical interval valued fuzzy ideals in semigroups.