摘 要:
本文证明了弱Hardy正规鞅空间wHp和wH^sp上的原子分解定理.利用鞅的原子分解给出了弱Hardy正规鞅空间上的次线性算子有界的一个充分条件.利用这个条件得到了关于正规鞅的一些弱Lp范数不等式和弱(p,p)型不等式.这些结果是经典Hp鞅论中一些重要结果的弱型对应.[著者文摘]

文章出处:
《应用数学》-2007年20卷4期 -653-658页
分 类 号:
文献标识码:
A
文章编号:
1001-9847(2007)04-0653-06
Weak Hardy Regular Martingale Spaces and Atomic Decompositions
REN Yan-bo , HOU You-liang ( Department of Mathematics & Physics, Henan University of Science and Technology, Luoyang 471003 ,China ; School of Mathematics and Statistics , Wuhan University , Wuhan 430072, China)
Abstract:
In this paper some atomic decomposition theorems for weak Hardy regular martingale space wHp and wH^sp are proved. Using the atomic decompositions of martingale,a sufficient condition for a sublinear operator defined on weak Hardy spaces to be bounded is given. Using the sufficient condition,we obtain some martingale inequa!ities with respect to the weak Lp- norm and some inequalities of weak (19,19) -type. The results are the weak versiotls of the results in the classical martingale Hp theory.[著者文摘]
Key words:
Regular martingale ; Weak Hardy space ; Atomic decomposition
基金资助:
国家自然科学基金资助项目(10671147)

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