Optimality conditions and duality results for nondifferentiable vector interval-valued optimization problems with G-invex functions
摘要
In this paper, the class of nonsmooth vector optimization problems with multiple interval-valued objectives is considered in which every component of all the involved functions is a locally Lipschitz mapping. Both the Fritz John necessary optimality conditions and, under the introduced no nonzero abnormal multiplier G-constraint qualification, the Karush-Kuhn-Tucker necessary optimality conditions are established for a weak LU-Pareto solution in such nondifferentiable multicriteria interval-valued optimization problems. Further, the sufficient optimality conditions for both weak LU-Pareto and LU-Pareto solutions, and, moreover, several duality results in the Mond-Weir sense are established under the assumptions that the functions constituting the considered nondifferentiable vector interval-valued optimization problem are G-invex.