This research was supported by the National Natural Science Foundation of China (Grant No. 10171118);the Education Committee Project Research Foundation of Chongqing (Grant No. 030801);the Natural Science Foundation of Chongqing (No. 8409);the Inland Education Foundation of Chongqing.
In this paper, such new definitions as D-B-preinvexity, strictly D-B-preinvexity and explicitly D-B-preinvexity for vector-valued mappings are firstly introduced. Then, a sufficient condition of D-B-preinvex mappings ...