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arXiv 1105.4848math.CA
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$A_{p_1, p_2}$类中权的Sharp弱型估计

Sharp weak type estimates for weights in the class $A_{p_1, p_2}$

Alexander Reznikov

摘要:

我们得到了非负权分布函数的精确估计,它满足所谓的$A_{p_1, p_2}$条件。对于参数$p_1$、$p_2$的特定选择,该条件变为$A_p$条件或反向赫尔德条件。我们也得到了这些尖锐估计的最大化。我们使用贝尔曼技术,并试图仔细介绍和激励我们的战术。作为如何使用这些结果的说明,我们推导出以下结果:如果权重$w$在$A_2$中,则它自改进为满足反向赫尔德条件的权重。

英文摘要:

We get sharp estimates for the distribution function of nonnegative weights, which satisfy so called $A_{p_1, p_2}$ condition. For particular choices of parameters $p_1$, $p_2$ this condition becomes an $A_p$-condition or Reverse Hölder condition. We also get maximizers for these sharp estimates. We use the Bellman technique and try to carefully present and motivate our tactics. As an illustration of how these results can be used, we deduce the following result: if a weight $w$ is in $A_2$ then it self-improves to a weight, which satisfies a Reverse Hölder condition.

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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