On the Atkinson formula for the $ζ$ function
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| Format: | Preprint |
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2021
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| _version_ | 1866914682158186496 |
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| author | Dona, Daniele Alterman, Sebastian Zuniga |
| author_facet | Dona, Daniele Alterman, Sebastian Zuniga |
| contents | Thanks to Littlewood (1922) and Ingham (1928), we know the first two terms of the asymptotic formula for the square mean integral value of the Riemann zeta function $ζ$ on the critical line. Later, Atkinson (1939) presented this formula with an error term of order $O(\sqrt{T}\log^{2}(T))$, which we call the Atkinson formula. Following the latter approach and the work of Titchmarsh (1986), we present an explicit version of the Atkinson formula, improving on a recent bound by Simonič (2020). Moreover, we extend the Atkinson formula to the range $\Re(s)\in\left[\frac{1}{4},\frac{3}{4}\right]$, giving an explicit bound for the square mean integral value of $ζ$ and improving on a bound by Helfgott and the authors (2019). We use mostly classical tools, such as the approximate functional equation and the explicit convexity bounds of the zeta function given by Backlund (1918). |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2104_14253 |
| institution | arXiv |
| publishDate | 2021 |
| record_format | arxiv |
| spellingShingle | On the Atkinson formula for the $ζ$ function Dona, Daniele Alterman, Sebastian Zuniga Number Theory 11M06, 11N37 Thanks to Littlewood (1922) and Ingham (1928), we know the first two terms of the asymptotic formula for the square mean integral value of the Riemann zeta function $ζ$ on the critical line. Later, Atkinson (1939) presented this formula with an error term of order $O(\sqrt{T}\log^{2}(T))$, which we call the Atkinson formula. Following the latter approach and the work of Titchmarsh (1986), we present an explicit version of the Atkinson formula, improving on a recent bound by Simonič (2020). Moreover, we extend the Atkinson formula to the range $\Re(s)\in\left[\frac{1}{4},\frac{3}{4}\right]$, giving an explicit bound for the square mean integral value of $ζ$ and improving on a bound by Helfgott and the authors (2019). We use mostly classical tools, such as the approximate functional equation and the explicit convexity bounds of the zeta function given by Backlund (1918). |
| title | On the Atkinson formula for the $ζ$ function |
| topic | Number Theory 11M06, 11N37 |
| url | https://arxiv.org/abs/2104.14253 |