On the sum-of-squares function

Fuente: arXiv
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Main Author: Iudelevich, Vitalii V.
Format: Preprint
Published: 2025
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author Iudelevich, Vitalii V.
author_facet Iudelevich, Vitalii V.
contents In this paper, we derive the following asymptotic formula $$ \mathop{{\sum}'}_{n\leqslant x}\dfrac{r(n)}{r(n+1)} = {x}{(\ln x)^{-3/4}}(c+o(1)),\ \ x \to +\infty,$$ where $r(n)$ is the number of representations of $n$ as a sum of two squares, $c$ is a positive constant, and the prime indicates summation over those $n$ for which $r(n+1)\neq 0$.
format Preprint
id arxiv_https___arxiv_org_abs_2508_02701
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the sum-of-squares function
Iudelevich, Vitalii V.
Number Theory
11M06, 11N37
In this paper, we derive the following asymptotic formula $$ \mathop{{\sum}'}_{n\leqslant x}\dfrac{r(n)}{r(n+1)} = {x}{(\ln x)^{-3/4}}(c+o(1)),\ \ x \to +\infty,$$ where $r(n)$ is the number of representations of $n$ as a sum of two squares, $c$ is a positive constant, and the prime indicates summation over those $n$ for which $r(n+1)\neq 0$.
title On the sum-of-squares function
topic Number Theory
11M06, 11N37
url https://arxiv.org/abs/2508.02701