Low moments of random multiplicative functions twisted by Fourier coefficients of modular forms

Fuente: arXiv
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Main Authors: Gao, Peng, Zhao, Liangyi
Format: Preprint
Published: 2026
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_version_ 1866914464858636288
author Gao, Peng
Zhao, Liangyi
author_facet Gao, Peng
Zhao, Liangyi
contents Let $λ(n)$ denote the Fourier coefficients of a fixed modular form and $h(n)$ a Steinhaus or Rademacher random multiplicative function. In this paper, we determine the order of magnitude of \[ \E|\sum_{n \leq x} h(n)λ(n)|^{2q} \] for real $x$, $q$ with $0 \leq q \leq 1$.
format Preprint
id arxiv_https___arxiv_org_abs_2604_09968
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Low moments of random multiplicative functions twisted by Fourier coefficients of modular forms
Gao, Peng
Zhao, Liangyi
Number Theory
11N37, 11L40, 11K65, 60G15, 60G57
Let $λ(n)$ denote the Fourier coefficients of a fixed modular form and $h(n)$ a Steinhaus or Rademacher random multiplicative function. In this paper, we determine the order of magnitude of \[ \E|\sum_{n \leq x} h(n)λ(n)|^{2q} \] for real $x$, $q$ with $0 \leq q \leq 1$.
title Low moments of random multiplicative functions twisted by Fourier coefficients of modular forms
topic Number Theory
11N37, 11L40, 11K65, 60G15, 60G57
url https://arxiv.org/abs/2604.09968