Weighted Subdifferential for Set-valued Mappings with Applications
摘要
In this study, we use weighted directional derivative to introduce the weighted subdifferential for set-valued mappings by means of a nonlinear scalarization function related to weighted set order relations. We obtain several properties of weighted subdifferential for set-valued mappings corresponding to the ones for subdifferential in the sense of convex analysis. The mean value theorem in terms of weighted subdifferential for set-valued mappings is also established. Several examples are provided to illustrate the results of this paper. As applications, we establish necessary and sufficient optimality conditions for a weak minimal solution of the set optimization problems with respect to weighted set order relations.