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A NOTE ON LARGE VALUES OF $\boldsymbol{L(\sigma ,\chi )}$

Published online by Cambridge University Press:  04 October 2021

XUANXUAN XIAO
Affiliation:
Faculty of Information Technology, Macau University of Science and Technology, Macau e-mail: xiaoxuan.uhp@gmail.com
QIYU YANG*
Affiliation:
Faculty of Information Technology, Macau University of Science and Technology, Macau

Abstract

In this note, by introducing a new variant of the resonator function, we give an explicit version of the lower bound for $\log |L(\sigma ,\chi )|$ in the strip $1/2<\sigma <1$ , which improves the result of Aistleitner et al. [‘On large values of $L(\sigma ,\chi )$ ’, Q. J. Math. 70 (2019), 831–848].

MSC classification

Type
Research Article
Copyright
© The Author(s), 2021. Published by Cambridge University Press on behalf of Australian Mathematical Publishing Association Inc.

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Footnotes

This work is supported by the Science and Technology Development Fund, Macau SAR (File no. 0095/2018/A3).

References

Aistleitner, C., ‘Lower bounds for the maximum of the Riemann zeta function along vertical lines’, Math. Ann. 365 (2016), 473496.CrossRefGoogle Scholar
Aistleitner, C., Mahatab, K., Munsch, M. and Peyrot, A., ‘ On large values of $L\left(\sigma, \chi \right)$ ’, Q. J. Math. 70 (2019), 831848.CrossRefGoogle Scholar
Bondarenko, A. and Seip, K., ‘Note on the resonance method for the Riemann zeta function’, in: 50 Years with Hardy Spaces, Operator Theory: Advances and Applications, 261 (eds. Baranov, A., Kisliakov, S. and Nikolski, N.) (Birkhaüser, Cham, 2018), 121140.CrossRefGoogle Scholar
Davenport, H., Multiplicative Number Theory, 2nd edn, Graduate Texts in Mathematics, 74 (revised by Montgomery, H. L.) (Springer, New York–Berlin, 1980).CrossRefGoogle Scholar
Hilberdink, T., ‘An arithmetical mapping and applications to $\Omega$ -results for the Riemann zeta function’, Acta Arith. 139 (2009), 341367.CrossRefGoogle Scholar
Montgomery, H. L., ‘Extreme values of the Riemann zeta function, Comment. Math. Helv. 52 (1977), 511518.CrossRefGoogle Scholar
Soundararajan, K., ‘Extreme values of zeta and L-functions’, Math. Ann. 342 (2008), 467486.CrossRefGoogle Scholar

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