A study of fuzzy parametric on multiobjective nonlinear programming problems without differentiability

This paper deals with multiobjective nonlinear programming problems with fuzzy parameters in the objective functions without differentiability. These fuzzy parameters are characterized by fuzzy numbers. The existing results concerning the stability notions of parametric convex programs are reformulated to study the stability of multiobjective nonlinear programming problems under the concept of α-pareto optimality without differentiability on the functions considered.