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自由随机变量和的凹Φ不等式

Concave Φ-moment inequalities on sums of free random variables
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摘要 设(M,τ)是非交换的概率空间,(xk)nk=1是L0(M)中的一个自由的随机变量序列.设Φ是[0,∞)上递增的凹函数,满足Φ(0)=0.本文主要研究当xk,1 k n是正随机变量时,τΦ(∑nk=1xk)与这个随机变量序列不交和的Φ-距(τ⊕tr)Φ(∑nk=1xk⊕ek)之间的关系. Let (M, T) be a noncommutative probability space and( XK)NK= 1∈Lo(M) be free random variables. r Let φ be an increasing and concave function on [0, ∝) with φ(0) = O. This paper characterize the quantityin term of the sum of disjoint copies of the given positive sequence.
作者 彭丽华 焦勇
出处 《中国科学:数学》 CSCD 北大核心 2015年第5期683-694,共12页 Scientia Sinica:Mathematica
基金 国家自然科学基金(批准号:11471337) 湖南省自然科学基金(批准号:14JJ1004)资助项目
关键词 自由随机变量 φ-不等式 Kruglov算子 非交换的极大算子 free random variables,φ-inequalities Kruglov operator, noncommutative maximal operator
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