Central limit theorems for random multiplicative functions over function fields

Fuente: arXiv
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Autores principales: Hoban, Declan, Shah, Jibran Iqbal, Ismail, Nadya-Catherine, Verreault, William, Zaman, Asif
Formato: Preprint
Publicado: 2025
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author Hoban, Declan
Shah, Jibran Iqbal
Ismail, Nadya-Catherine
Verreault, William
Zaman, Asif
author_facet Hoban, Declan
Shah, Jibran Iqbal
Ismail, Nadya-Catherine
Verreault, William
Zaman, Asif
contents We provide a sufficient characterization for subsets $\mathcal{A}$ of the polynomial ring $\mathbb{F}_q[t]$ for which partial sums of Steinhaus random multiplicative functions approach a complex standard normal distribution. This extends recent work of Soundararajan and Xu to the function field setting. We apply this characterization to deduce central limit theorems in four cases: polynomials in short intervals, polynomials with few prime factors, shifted primes, and rough polynomials. In doing so, we also establish an explicit Hildebrand inequality for smooth polynomials in short intervals, a function field form of Shiu's theorem for multiplicative functions, and an explicit Chebyshev bound for rough polynomials in short intervals.
format Preprint
id arxiv_https___arxiv_org_abs_2511_22905
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Central limit theorems for random multiplicative functions over function fields
Hoban, Declan
Shah, Jibran Iqbal
Ismail, Nadya-Catherine
Verreault, William
Zaman, Asif
Number Theory
Probability
We provide a sufficient characterization for subsets $\mathcal{A}$ of the polynomial ring $\mathbb{F}_q[t]$ for which partial sums of Steinhaus random multiplicative functions approach a complex standard normal distribution. This extends recent work of Soundararajan and Xu to the function field setting. We apply this characterization to deduce central limit theorems in four cases: polynomials in short intervals, polynomials with few prime factors, shifted primes, and rough polynomials. In doing so, we also establish an explicit Hildebrand inequality for smooth polynomials in short intervals, a function field form of Shiu's theorem for multiplicative functions, and an explicit Chebyshev bound for rough polynomials in short intervals.
title Central limit theorems for random multiplicative functions over function fields
topic Number Theory
Probability
url https://arxiv.org/abs/2511.22905