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g-拟凸函数的一个判别准则 被引量:3

Criteria of the g-quasiconvex Function
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摘要 证明了如下结果:设g∶H→H,C H是非空开的g-凸集,g(C)是凸集,f是C上的上半连续函数且存在α∈(0,1),使得f(αg(x)+(1-α)g(y))m ax{f。g(x),f。g(y)},x,y∈C,则f为C上的g-拟凸函数. In this paper, we prove this result. Let g : H → H, C (包含于) H be a nonempty open gconvex subset of a Hilbert space, g (C) be a convex set, f : C→R be upper semi-continuous and there exist a ∈ (0,1), such that f(ag(x) + (1 - a)g(y)) ≤(max{f · g(x), f·g(y)}, ∨ x, y ∈ C, then f is a g-quasiconvex function on C.
作者 宁刚
出处 《数学的实践与认识》 CSCD 北大核心 2006年第1期224-226,共3页 Mathematics in Practice and Theory
关键词 g-凸集 上半连续函数 g-拟凸函数 拟凸函数 判别准则 凸集 g-convex set upper semi-continuous function g-quasiconvex function
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参考文献5

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共引文献19

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  • 1宁刚.E-凸函数的若干特征[J].运筹学学报,2007,11(1):121-126. 被引量:14
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