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Jianwen PENG Xinmin YANG Weidong RONG 《系统科学与复杂性》2006,19(1):93-100
In this paper,such new definitions as D-B-preinvexity,strictly D-B-preinvexity and explic-itly D-B-preinvexity for vector-valued mappings are firstly introduced.Then,a sufficient condition ofD-B-preinvex mappings is shown.And then the relationship between the explicitly D-B-preinvexityand the strictly D-B-preinvexity is discussed.Finally,some properties of D-B-preinvex type mappingsare given. 相似文献
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