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arXiv 1202.2229math.CA
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A_2定理的非概率证明及奇异积分q-变分的尖锐加权界

Non-probabilistic proof of the A_2 theorem, and sharp weighted bounds for the q-variation of singular integrals

Tuomas P. Hytönen, Michael T. Lacey, Carlos Pérez

摘要:

任何Calderon-Zygmund算子T都被一个收敛的并矢正算子和点态控制。我们给出了一个基本的自包含证明这一事实,这是简单的概率参数用于所有以前的结果在这个方向上。我们的论点也适用于某些Calderon-Zygmund算子的q变分,这是一种比最大截断更强的非线性。作为应用,我们得到了新的尖锐的加权不等式.

英文摘要:

Any Calderon-Zygmund operator T is pointwise dominated by a convergent sum of positive dyadic operators. We give an elementary self-contained proof of this fact, which is simpler than the probabilistic arguments used for all previous results in this direction. Our argument also applies to the q-variation of certain Calderon-Zygmund operators, a stronger nonlinearity than the maximal truncations. As an application, we obtain new sharp weighted inequalities.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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