摘要：
The authors of this article are interested in characterization of efficient solutions for special classes of problems. These classes consider semi-strong E-convexity of involved functions. Sufficient and necessary conditions for a
feasible solution to be an efficient or properly efficient solution are obtained.
E. A. Youness; Tarek Emam. CHARACTERIZATION OF EFFICIENT SOLUTIONS FOR MULTI-OBJECTIVE OPTIMIZATION PROBLEMS INVOLVING SEMI-STRONG AND GENERALIZED SEMI-STRONG E-CONVEXITY[J]. 数学物理学报(英文版), 2008, 28(1): 7-16.
E. A. Youness; Tarek Emam. CHARACTERIZATION OF EFFICIENT SOLUTIONS FOR MULTI-OBJECTIVE OPTIMIZATION PROBLEMS INVOLVING SEMI-STRONG AND GENERALIZED SEMI-STRONG E-CONVEXITY[J]. Acta mathematica scientia,Series B, 2008, 28(1): 7-16.