刻划D-η-真预拟不变凸函数的新方法

• 作 者: 罗和治 吴惠仙 朱艺华
• 机 构: Dept.of Appl.Math.,Zhejiang Univ.of Technology,Zhejiang 310032,China;Dept.of Math.,Shanghai Univ.,Sh
• 出 处: 高校应用数学学报B辑
• 发表日期: 2006年1期
• 关键词: D-η-properly prequasi-invex function (weak)nearly convex set invex set lower D-s

The D-η-proper prequasi-invexity of vector-valued functions is characterized by means of (weak) nearly convexity and density of sets.Under weaker assumptions,some equivalent conditions for D-η-proper prequasi-invexity are derived.