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Main Authors: Heap, Winston, Sahay, Anurag
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.10888
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author Heap, Winston
Sahay, Anurag
author_facet Heap, Winston
Sahay, Anurag
contents We prove a sharp upper bound for the fourth moment of the Hurwitz zeta function $ζ(s,α)$ on the critical line when the shift parameter $α$ is irrational and of irrationality exponent strictly less than 3. As a consequence, we determine the order of magnitude of the $2k$th moment for all $0 \leqslant k \leqslant 2$ in this case. In contrast to the Riemann zeta function and other $L$-functions from arithmetic, these grow like $T (\log T)^k$. This suggests, and we conjecture, that the value distribution of $ζ(s,α)$ on the critical line is Gaussian.
format Preprint
id arxiv_https___arxiv_org_abs_2405_10888
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The fourth moment of the Hurwitz zeta function
Heap, Winston
Sahay, Anurag
Number Theory
We prove a sharp upper bound for the fourth moment of the Hurwitz zeta function $ζ(s,α)$ on the critical line when the shift parameter $α$ is irrational and of irrationality exponent strictly less than 3. As a consequence, we determine the order of magnitude of the $2k$th moment for all $0 \leqslant k \leqslant 2$ in this case. In contrast to the Riemann zeta function and other $L$-functions from arithmetic, these grow like $T (\log T)^k$. This suggests, and we conjecture, that the value distribution of $ζ(s,α)$ on the critical line is Gaussian.
title The fourth moment of the Hurwitz zeta function
topic Number Theory
url https://arxiv.org/abs/2405.10888