on nonsmooth optimality conditions and duality in robust multiobjective optimization

In this paper, we introduce a new concept of generalized con-vexity, and establish necessary=sucient optimality conditions for (weakly)robust ecient solutions of the considered problem. these optimality condi-tions are presented in terms of limiting subdierentials of the related func-tions. in addition, we address mond-weir-type robust dual problem to theprimal one, and explore weak=strong duality relations between them underassumptions of pseudo convexity.