The Nyman-Beurling equivalent form for the Riemann hypothesis
type: Item
instance of: scholarly article
title: The Nyman-Beurling equivalent form for the Riemann hypothesis
zbMATH Open document ID: 0954.11029
author: Michel Balazard
author: Éric Saïas
published in: Expositiones Mathematicae
publication date: 2001-02-12T00:00:00Z
review text: In this article based on a talk given during the 1998 Vienna Conference on the Riemann Hypothesis, the authors collect many results and open questions about the Riemann zeta functions [for example a result of \textit{L. Báez-Duarte, M. Balazard, B. Landreau} and \textit{E. Saias}, Adv. Math. 149, 130-144 (2000)]; in particular, a proof of the following result of \textit{H. Bercovici} and \textit{C. Foias} [Isr. J. Math. 48, 57-68 (1984; Zbl 0569.46011)], related to the Nyman-Beurling equivalent form of Riemann's hypothesis, is outlined: Denote by \(\rho_\alpha(t)\) the function \(\{{\alpha \over t}\}- \alpha\cdot \{ {1 \over t}\}\), where \( \{\beta\} = \beta - [\beta] \) is the fractional part of \( \beta \), and define (for \( f \in L^2(0,1) \)) the Mellin transform by \[ (Mf)(s) = {1 \over \sqrt{2\pi}} \cdot \int^1_0 f(t) \cdot t^{s-1} dt. \] Then \[ \text{span}_{L^2(0,1)} \left\{ \rho_\alpha, 0 < \alpha < 1 \right\} = \left\{ f \in L^2(0,1), {(Mf)(s) \over \zeta(s)} \text{ is holomorphic in } \text{Re}(s) > {1 \over 2} \right\}. \]
Mathematics Subject Classification ID: 11M26
zbMATH DE Number: 1455777
zbMATH Keywords: Mellin transform
zbMATH Keywords: Riemann hypothesis
zbMATH Keywords: theory of Hardy spaces
zbMATH Keywords: Nyman-Beurling equivalent form of Riemann's hypothesis
zbMATH Keywords: Riemann's zeta-function
zbMATH Keywords: Blaschke product
zbMATH Keywords: theorem of Beurling-Lax
reviewed by: Wolfgang Schwarz
MaRDI profile type: Publication
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description: scientific article; zbMATH DE number 1455777