Hardy空间上Fourier级数的Cesaro求和

研究了Hardy空间上Cesaro 算子的有界性.证明极大Cesaro算子的强型和弱型有界估计.其弱有界性估计是精确的.推广和加强了已有研究结果.     

Hardy空间上Fourier级数的Cesàro求和

研究了Hardy空间上Ces劋ro算子的有界性.证明极大Ces劋ro算子的强型和弱型有界估计.其弱有界性估计是精确的.推广和加强了已有研究结果.     

酉群上Fourier级数的Cesaro求和

设un为n阶酉群。u∈L1(Un)的Fourier级数的第二型Cesáro平均为σNα(u,U)=KN*αu(U),其中 KNα(U)=sum from (N≥li>…>ln≥-N)(Al1α…A1uN(f)Xf(U)),U∈Un为相应的核函数。本文给出“Lebesgue常数”‖KNα‖(L1(Un))的精确估计,并由此建立了酉群上函数的Fourier级数按第二型Cesáro求和收敛于自身的条件。     

伴随Herz空间的Hardy空间上的向量值Calderon—Zygmund算子

本文证明了一类具有向量值核的Ｃａｌｄｅｒｏｎ－Ｚｙｇｍｕｎｄ算子是Ｈｅｒｚ型Ｈａｒｄｙ空间ＨＫＰ到向量值Ｈｅｒｚ空间ＫＥ,ｐ有界的,应用这一结果,得到了粗糙核Ｃａｌｄｅｒｏｎ－Ｚｙｇｍｕｎｄ算子,极大型Ｃａｌｄｅｒｏｎ－Ｚｙｇｍｕｎｄ算子,极大算子等是ＨＫＰ到ＫＰ有界的。     

加权原子空间上Fourier级数的（C，α）算子

对[0,2π]年的区间I,对它的左右两个半区间L,R,定义一种加权原子形如b(t)=1/(p(t))[X1-XR(t)],其中ρ为满足某些性质的非负函数,加权原子b(t)的线性组合构成加权原子空间B（ρ）,本证明了如果f∈B(ρ),则f的Fourier级数的Cesaro平均几乎处处收敛。     

p-adic域,p-级数域的整环子群上微积分算子的Hardy空间有界性

Ｆ．Ｓｃｈｉｐｐ和Ｗ．Ｒ．Ｗａｄｅ在［１］中证明了单位方体上Ｄｙａｄｉｃ二元微积分算子的混合Ｈａｒｄｙ空间Ｈ＃（Ｉ×Ｉ）的弱型．本文证明了ｐ ａｄｉｃ域，ｐ 级数域的整环子群上一元和二元积分算子与微积分算子的Ｈｒ（Ｇ）与Ｈ＃（Ｇ×Ｇ）（０＜ｒ１）有界性．     

Calderon-Zygmund型算子在加权Herz型Hardy空间上的弱型估计

本文引入了加权弱Herz型Hardy空间，并证明了当a=n(1-1/q) δ时，胡国恩和陆善镇等在文[1]中所考虑的两类Calderon-Zygmund型算子分别连续地映加权Herz型Hardy空间到加权弱Herz空间和加权弱Herz型Hardy空间。     

p—除环上子空间的交与和

本文讨论Ｐ－除环上 间的交与和的关系。用Ａｂｅｌ范畴中裂正合序列的性质证明矩阵秩的恒等式和维数公式。     

加权Herz型Hardy空间上的强奇异积分算子

本文证明了当α＝ｎ１－１ｑ时，强奇异积分算子是从齐次加权Ｈｅｒｚ型Ｈａｒｄｙ空间ＨＫα，ｐｑ（ｗ１；ｗ２）到齐次加权Ｈｅｒｚ空间Ｋα，ｐｑ（ｗ１；ｗ２）上的有界算子．而且，该算子在非齐次加权Ｈｅｒｚ型Ｈａｒｄｙ空间ＨＫα，ｐｑ（ｗ１；ｗ２）上的有界性也被考查．     

伴随Herz空间的Hardy空间上的向量值Calderón-Zygmund算子(英文)

本文证明了一类具有向量值核的Calderon－Zygmund算子是Herz型Hard,空间HKp到向量值Herz空间KE,p有界的,应用这一结果,得到了粗糙核Calderon－Zygmund算子,极大型Calderon－Zygmund算子,极大算子等是HKp到Kp有界的．     

New Hardy Spaces Associated with Herz Spaces and Beurling Algebras on Homogeneous Groups

The author introduces the Hardy spaces associated with the Herz spaces and the Beurling algebras on homogeneous groups and establishes their atomic decomposition characterizations. As the applications of this decomposition, the duals of these Hardy spaces and the boundedness of the central δ-Calderón-Zygmund operators on these Hardy spaces are studied. Received January 13, 2000, Accepted July 26, 2000     

Variable Exponent Herz Type Hardy Spaces and Their Applications

In this paper,the authors introduce certain Herz type Hardy spaces with variable exponents and establish the characterizations of these spaces in terms of atomic and molecular decompositions. Using these decompositions,the authors obtain the boundedness of some singular integral operators on the Herz type Hardy spaces with variable exponents.     

次线性算子在Herz型Hardy空间上的有界性

本文得到了一类次线性算子在Herz型Hardy空间上的有界性判定条件,该算子包括调和分析中许多重要的算子,同时还证明了Bochner-Riesz算子在Herz型Hardy空间上的有界性.     

Boundedness for Hardy Type Operators on Herz Spaces with Variable Exponents

In this paper, we will prove the boundedness of Hardy type operators Hβ(x) and H*β(x) of variable order β(x) on Herz spaces Kα(·)p(·),q and Kα(·)p(·),q' where α(·) and p(·)are both variable.     

Continuity for Maximal Multilinear Bochner-Riesz Operators on Hardy and Herz Hardy Spaces

Let Baδ^A. be the maxiamal multilinear Bochner-Riesz operators generated by Bochner Riesz operators and D^αA∈ Lipβ（｜α｜= m）, The continuity of the operator on some Hardy and Herz type Hardy is obtained.     

Parametrized Area Integrals on Hardy Spaces and Weak Hardy Spaces

In this paper, the authors prove that if Ω satisfies a class of the integral Dini condition, then the parametrized area integral μΩ,S^ρ is a bounded operator from the Hardy space H1 （R^n） to L1 （R^n） and from the weak Hardy space H^1,∞ （R^n） to L^1,∞ （R^n）, respectively. As corollaries of the above results, it is shown that μΩ,S^ρ is also an operator of weak type These conclusions are substantial improvement and （1, 1） and of type （p,p） for 1 〈 p 〈 2, respectively extension of some known results.     

Bilinear Operators on Herz-type Hardy Spaces on Locally Compact Vilenkin Groups

Let G be a locally compact Vilenkin group. In this paper the authors study the boundedness of bilinear operators B（f, g） given by finite sums of products of Calderdn-Zygmund operators in Herz space and Herz-type Hardy space on G. And an example, the boundedness from the products of Herz space to Herz-type Hardy space is given in the last section.     

伴随BMO函数的交换子在Herz型Hardy空间上的加权有界性

记 [b ,T]为由BMO函数b与广义Calder幃ｎ Zygmund算子T生成的交换子 .研究了 [b ,T]在Herz型Hardy空间上的有界性及其加权有界性 .