Clarkson不等式与Banach空间几何

我们证明了Banach空间X是Clarkson p型（q余型）当且仅当X是一个特殊的p一致光滑空间（q-一致凸空间（）,我们还找到刻划型（余型）的一系列鞅不等式,同时,我们得到了均方函数sharp不等式。     

Theta(t)型奇异积分算子在Banach空间值上的加权有界性

本文借助于Calderón-Zygmund分解理论和Hardy空间的原子分解理论,把实值上的几个结果推广到了Banach值的情形,得到了theta(t)型奇异积分算子在Banach值加权空间上的有界性,以及在Banach值加权Hardy空间上的有界性.这些结果是theta(t)型奇异积分算子有界性的完善和补充.     

THE BOUNDEDNESS OF OPERATORS ON WEIGHTED MULTI-PARAMETER LOCAL HARDY SPACES

Though atomic decomposition is a very useful tool for studying the boundedness on Hardy spaces for some sublinear operators,untill now,the boundedness of operators on weighted Hardy spaces in a multi-parameter setting has been established only by almost orthogonality estimates.In this paper,we mainly establish the boundedness on weighted multi-parameter local Hardy spaces via atomic decomposition.     

SOME PROPERTIES OF m-ISOMETRIES AND m-INVERTIBLE OPERATORS ON BANACH SPACES

This article has two purposes:the first is to give some structure results for the class of m-isometries,and the second purpose is to extend the notions of left and right inverses to m-left and m-right ...     

BOUNDEDNESS OF MULTILINEAR LITTLEWOOD-PALEY OPERATORS ON AMALGAM-CAMPANATO SPACES

In this paper, we consider the boundedness of multilinear Littlewood-Paley operators which include multilinear g-function, multilinear Lusin's area integral and multilinear Littlewood-Paley g_λ~*-function. Furthermore, norm inequalities of the above operators hold on the corresponding Amalgam-Campanato spaces.     

Herz-Morrey空间上多线性Littlewood-Paley算子的有界性

设$g_\psi^A$为多线性Littlewood-Paley算子,在$g_\psi^A$的加权$L^p{(\omega)}$有界性的基础上,对Herz-Morrey空间中此类算子进行了讨论,并得到了BMO有界的估计.     

BOUNDEDNESS OF VECTOR-VALUED OPERATORS ON WEIGHTED HERZ SPACES

In this paper, the authors establish the weighted weak and strong type norm inequalities in the set of weighted Herz-type spaces for a vector-valued analogue of the Hardy-Littlewood maximal operator; and using this, the authors obtain the weightd inequalies for a wide class of sublinear singular operators defined onR ⁿ which include the Calderón-Zygmund operators as special cases. The fractional versions of these results are also given. Yang Dachun was partially supported by the NNSF and the SEDF of China and the Grant-in-Aid for Scientific research(11304009), Japan Society for the Promotion of Science.     

B值鞅不等式与Banach空间几何性质的刻划

本文建立了Ｂ值鞅的极大函数ｆ，平削函数ｆｐ＾＃，ｆｐ＾＃的凸Φ－不等式，反过来用这些不等式刻划了Ｂａｎａｃｈ空间的凸性和光滑性，同时给出了超自反空间以及与Ｈｉｌｂｅｒｔ空间同构的Ｂａｎａｃｈ空间的特征。本文的结论推广了一些熟知的重要结果。     

弱Hardy空间上多线性分数次积分算子的有界性

本文研究了弱Hardy空间上多线性分数次积分算子和相应的多线性分数次极大算子的有界性,利用多线性分数次积分转化为相对应的分数次积分的方法,得到算子TΩ,α,A和MΩ,α,A的弱型估计.     

广义分数次积分算子在齐次加权Morrey-Herz空间上的有界性

本文研究了广义分数次积分算子在齐次加权Morrey-Herz空间上的有界性.利用对函数进行环形分解技术和算子截断的方法,获得了广义分数次积分算子L~(-β/2)(f)从MK_(p,q1)~(α,λ)(ω1,ω_2~(q1))空间到MK_(p,q2)~(α,λ)(ω_1,ω_2~(q2))空间是有界的,从而将分数次积分算子在齐次加权Morrey-Herz空间上的有界性推广到广义分数次积分算子.     

具有无条件鞅差性质的空间

近年来,Aldous,Burkholder,Maurey,Pisier,Bourgain 等定义并研究了具有无条件鞅差性质的空间.Banach 空间 X 称为是具有无条件鞅差性质的(记为 X∈UMD),如果 L_p(X)(1相似文献   

Hilbert变换在Banach值Hardy空间上的有界性

本文给出了Ｈｉｌｂｅｒｔ变换在Ｂａｎａｃｈ空间值Ｈａｒｄｙ空间ＨＢ＾１（Ｒ）上的有界性。     

Banach空间上算子张量积的联合谱

本文主要研究了 Banach 空间上交换算子组的张量积以及 Banach 代数的张量积中交换元组的 Taylor 联合谱,推广了 Vasilescu,F.H.及 Wrobel,V.等人结果。     

ON STRICT SINGULARITY OF LOCALLY INTEGRAL OPERATORS ON BANACH FUNCTION SPACES

Abstract

In this note we generalize a result of L. Weis and V. V. Shevchik about strict singularity of the Fourier transform to a large class of locally integral operators on function spaces.     

（1.2） INVERSES OF OPERATORS BETWEEN BANACH SPACES AND LOCAL CONJUGACY THEOREM

1.(1.2)InverseandLocalFinePropertyofaFamilyofOperatorsTxLetEandFbebothBanachspaces,andB(E,F)thesetofallboundedlinearoperatorsfromEintoFAnoperatorT B(F,E)issaidtobea(1.2)inverseofTifTT T=TandT TT =T .IfT satisfiesonlythefirstcondition,thenT issaidtobe...     

一类函数空间上偏微分算子有界性和紧性的刻画(英文)

本文研究了一类具有再生核的多复变量函数空间上偏微分算子的有界性和紧性.利用算子理论的方法,获得了偏微分算子是有界的和紧的充分必要条件,推广了文献[1]中的结果.     

一类分数次次线性算子及其交换子在齐型空间上的弱Morrey-Herz空间上的有界性

本文研究了一类次线性算子及其交换子在齐型空间上的弱有界性的问题.利用齐型空间的基本性质以及给出的一类次线性算子及其分别与BMO函数,Lipschitz函数生成的交换子在L~p(X)上的弱有界性,证明了其在齐型空间上Morrey-Herz空间中的弱有界性.推广了该类算子在Morrey-Herz空间中的强有界性这一结果.