在文献[1-2]中,已经对E-凸集,E-凸函数,半-E-凸函数进行了研究,得出了一些性质.本文在此基础上对它们进行了再次研究,得出了一些新性质,完善了这类非凸集和非凸函数.
[1] YOUNESS E A. E-Convex sets, E-Convex functions and E-Convex programmimg [J]. Journal of Optimization Theory and Applications 1999, 102(02).
[2] Chen XS.. Some properties of semi-E-convex functions [J]. Journal of Mathematical Analysis and Applications 2002, 1(1).
[3] Yang XM.. On E-convex sets, E-convex functions, and E-convex programming [J]. Journal of Optimization Theory and Applications 2001, 3(3).
[4] 冯得兴. 凸分析基础 [M]. 北京:科学出版社 1995.