首页> 外文期刊>Bulletin of the Korean Mathematical Society >Approximate convexity with respect to integral arithmetic mean
【24h】

Approximate convexity with respect to integral arithmetic mean

机译:相对于积分算术平均值的近似凸度

获取原文
           

摘要

Let $(Omega, {mathcal S}, mu)$ be a probabilistic measure space, $arepsilon in R$, $delta geq 0$, $p>0$ be given numbers and let $P subset R$ be an open interval. We consider a class of functions $f: P ightarrow R$, satisfying the inequality $$f(EX) leq E(f circ X)+arepsilon E(|X-EX|^p)+delta$$ for each ${mathcal S}$-measurable simple function $X: Omega ightarrow P$. We show that if additionally the set of values of $mu$ is equal to $[0,1]$ then $f: P ightarrow R$ satisfies the above condition if and only if $$f(tx+(1-t)y) leq tf(x)+(1-t)f(y)+arepsilon left[(1-t)^p t+t^p (1-t)ight] |x-y|^p +delta$$ for $x,y in P$, $t in [0,1]$. We also prove some basic properties of such functions, e.g. the existence of subdifferentials, Hermite-Hadamard inequality.
机译:设$( Omega,{ mathcal S}, mu)$为一个概率度量空间,给$ varepsilon in R $,$ delta geq 0 $,$ p> 0 $赋予数字,并让$ P subset R $是一个开放间隔。我们考虑一类函数$ f:P rightarrow R $,满足不等式$$ f(EX) leq E(f circ X)+ varepsilon E(| X-EX | ^ p)+ delta每个$ { mathcal S} $可测量的简单函数$ X的$$: Omega rightarrow P $。我们证明,如果$ mu $的值集等于$ [0,1] $,则$ f:P rightarrow R $满足上述条件,当且仅当$$ f(tx +(1- t)y) leq tf(x)+(1-t)f(y)+ varepsilon left [(1-t)^ p t + t ^ p(1-t) right] | xy | ^ p + delta $$表示$ x,y in P $,$ t in [0,1] $。我们还证明了此类功能的一些基本属性,例如存在亚微分,Hermite-Hadamard不等式。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号