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arXiv 2203.05030math.FA
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Hardy空间中与ζ零点相关的正交性问题

Orthogonality questions in the Hardy space related to $ζ$-zeros

Francisco Calderaro, Juan Manzur, Waleed Noor, Charles Santos

AI总结:

本文通过Hardy空间方法研究黎曼猜想相关函数族的正交补与双正交序列,揭示ζ零点信息,并讨论RH失败时零点数量的猜想。

摘要:

最近在文献[18]中引入了对黎曼猜想(RH)的Nyman-Beurling和Báez-Duarte准则的Hardy空间方法,并在文献[13]中进一步发展。该方法指出,RH成立当且仅当特定函数序列$(h_k)_{k\geq 2}$在Hardy空间$H^2$中是完备的。本文关注与族$(h_k)_{k\geq 2}$相关的正交性问题。第一个目标是分析$\mathcal{N}=\mathrm{span}(h_k)_{k\geq 2}$在$H^2$中的正交补。$H^p$空间上的无界Toeplitz算子以及de Branges-Rovnyak空间起着核心作用,我们的结果表明$\mathcal{N}^\perp$的大小和维数揭示了黎曼$ζ$-函数零点的信息。第二个目标是证明$(h_k)_{k\geq 2}$在$H^2$中具有完备的双正交序列。我们还讨论了关于若RH失败则$ζ$-零点数量的一个民间猜想。

英文摘要:

A Hardy space approach to the Nyman-Beurling and Báez-Duarte criterion for the Riemann Hypothesis (RH) was introduced recently in [18] and further developed in [13]. It states that the RH holds if and only if a particular sequence of functions $(h_k)_{k\geq 2}$ is complete in the Hardy space $H^2$. This article is concerned with orthogonality questions related to the family $(h_k)_{k\geq 2}$. The first goal is to analyze the orthogonal complement of $\mathcal{N}=\mathrm{span}(h_k)_{k\geq 2}$ in $H^2$. Unbounded Toeplitz operators on $H^p$ spaces and de Branges-Rovnyak spaces play a central role and our results show that the size and dimension of $\mathcal{N}^\perp$ reveal information on the zeros of the Riemann $ζ$-function. The second goal is to show that $(h_k)_{k\geq 2}$ possesses a complete biorthogonal sequence in $H^2$. We also discuss a folklore conjecture about the number of $ζ$-zeros if the RH fails.

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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