The limiting distribution of Legendre paths

Fuente: arXiv
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Main Authors: Hussain, Ayesha, Lamzouri, Youness
Format: Preprint
Published: 2023
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author Hussain, Ayesha
Lamzouri, Youness
author_facet Hussain, Ayesha
Lamzouri, Youness
contents Let $p$ be a prime number and $\left(\frac{\cdot}{p}\right)$ be the Legendre symbol modulo $p$. The \emph{Legendre path} attached to $p$ is the polygonal path whose vertices are the normalized character sums $\frac{1}{\sqrt{p}} \sum_{n\leq j} \left(\frac{n}{p}\right)$ for $0\leq j\leq p-1$. In this paper, we investigate the distribution of Legendre paths as we vary over the primes $Q\leq p\leq 2Q$, when $Q$ is large. Our main result shows that as $Q \to \infty$, these paths converge in law, in the space of real-valued continuous functions on $[0, 1]$, to a certain random Fourier series constructed using Rademacher random completely multiplicative functions. This was previously proved by the first author under the assumption of the Generalized Riemann Hypothesis.
format Preprint
id arxiv_https___arxiv_org_abs_2304_13025
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle The limiting distribution of Legendre paths
Hussain, Ayesha
Lamzouri, Youness
Number Theory
Probability
Let $p$ be a prime number and $\left(\frac{\cdot}{p}\right)$ be the Legendre symbol modulo $p$. The \emph{Legendre path} attached to $p$ is the polygonal path whose vertices are the normalized character sums $\frac{1}{\sqrt{p}} \sum_{n\leq j} \left(\frac{n}{p}\right)$ for $0\leq j\leq p-1$. In this paper, we investigate the distribution of Legendre paths as we vary over the primes $Q\leq p\leq 2Q$, when $Q$ is large. Our main result shows that as $Q \to \infty$, these paths converge in law, in the space of real-valued continuous functions on $[0, 1]$, to a certain random Fourier series constructed using Rademacher random completely multiplicative functions. This was previously proved by the first author under the assumption of the Generalized Riemann Hypothesis.
title The limiting distribution of Legendre paths
topic Number Theory
Probability
url https://arxiv.org/abs/2304.13025