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2007年09月17日

【期刊论文】BOUNDEDNESS OF SINGULAR INTEGRALS OF VARIABLE ROUGH CALDERON-ZYGMUND KERNELS ALONG SURFACES

杨大春, LIN TANG, DACHUN YANG

Integr. Equ. oper. Theory 43(2002)488-502,-0001,():

-1年11月30日

摘要

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2007年09月17日

【期刊论文】Boundedness of maximal singular integral operators on spaces of homogeneous type and its applications

杨大春, Guoen Hu, Dachun, Dongyong Yang

J. Math. Soc. Japan Vol. 59, No. 2 (2007)pp. 323-349,-0001,():

-1年11月30日

摘要

Some equivalent characterizations for boundedness of maximal singular integral operators on spaces of homogeneous type are given via certain norm inequalities on John-Stromberg sharp maximal functions and without resorting the boundedness of these operators themselves. As a corollary, the results of Grafakos on Euclidean spaces are generalized to spaces of homogeneous type. Moreover, applications to maximal Monge-Ampere singular integral operators and maximal Nagel-Stein singular integral operators on certain specific smooth manifolds are also presented.

Space of homogeneous type, maximal singular integral, Monge-Ampere singular integral operator, Nagel-Stein singular integral operator

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2007年09月17日

【期刊论文】A Boundedness Criterion via Atoms for Linear Operators in Hardy Spaces

杨大春, Dachun Yang, Yuan Zhou

,-0001,():

-1年11月30日

摘要

Let p ∈ (0,1] and s≧[n(1=p-1)], where [n(1=p-1)] denotes the maximal integer no more than n(1=p-1). In this paper, the authors prove that a linear operator T extends to a bounded linear operator from the Hardy space Hp(Rn) to some quasi-Banach space B if and only if T maps all (p; 2; s)-atoms into uniformly bounded elements of B.

Linear operator, Boundedness criterion; Hardy space; Atom; Calderon reproducing formula; Quasi-Banach space

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2007年09月17日

【期刊论文】CALDER′ON-ZYGMUND OPERATORS ON HARDY SPACES WITHOUT THE DOUBLING CONDITION

杨大春, WENGU CHEN, YAN MENG, DACHUN YANG

PROCEEDINGS OF THE AMERICAN MATHEMATICAL SOCIETY Volume 133, Number 9, Pages 2671-2680,-0001,():

-1年11月30日

摘要

Let μ be a non-negative Radon measure on Rd which only satisfies some growth condition. In this paper, the authors obtain the boundedness of Calderon-Zygmund operators in the Hardy space H1(μ).

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2007年09月17日

【期刊论文】Riesz Potentials in Besov and Triebel–Lizorkin Spaces over Spaces of Homogeneous Type

杨大春, DACHUN YANG

Potential Analysis 19: 193-210, 2003,-0001,():

-1年11月30日

摘要

By using the discrete Calderón reproducing formulae, the author first establishes the boundedness of the Riesz-potential-type operator in homogeneous Besov and Triebel–Lizorkin spaces over spaces of homogeneous type. Then, by use of the T 1 theorems for these spaces, the author proves that this operator of Riesz potential type can be used as the lifting operator of these spaces.

space of homogeneous type, Riesz potential, Besov space, Triebel–Lizorkin space

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    北京师范大学,北京

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