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arXiv 1104.2199math.CA
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关于希尔伯特变换的一个A_p-A_infty不等式

An A_p --A_infty inequality for the Hilbert Transform

Michael T Lacey

摘要:

继续Lerner和Hytonen-Perez的主题,我们建立了一个有界复杂性的Haar移位算子的L^p(w)不等式,它量化了权的A_infty特征对L^p范数的贡献。这里,1<p< \infty。Hytonen-Perez不等式仅适用于p=2,改进了作者和其他6位合作者的一个不等式.作为推论,同样的不等式对有界复杂度的Haar变换的凸包中的所有Calderon-Zygmund算子都成立,其中的典型例子是希尔伯特变换。我们猜想同样的不等式对所有的Calderon-Zygmund算子都成立。

英文摘要:

Continuing a theme of Lerner and Hytonen-Perez, we establish an L^p(w) inequality for a Haar shift operator of bounded complexity, that quantifies the contribution of the A_infty characteristic of the weight to the L^p norm. Here, 1<p<\infty. The Hytonen-Perez inequality is only for p=2, and we improve an inequality of the author and 6 other collaborators. As a corollary, the same inequality holds for all Calderon-Zygmund operators in the convex hull of Haar shifts of a bounded complexity, of which the canonical example is the Hilbert transform. We conjecture that the same inequality holds for all Calderon-Zygmund operators.

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