Diophantine approximation with sums of two squares II

Fuente: arXiv
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Main Authors: Baier, Stephan, Rahaman, Habibur
Format: Preprint
Published: 2025
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author Baier, Stephan
Rahaman, Habibur
author_facet Baier, Stephan
Rahaman, Habibur
contents Recently, the authors showed that for every irrational number $α$, there exist infinitely many positive integers $n$ represented by any given positive definite binary quadratic form $Q$, satisfying $||αn||<n^{-(1/2-\varepsilon)}$ for any fixed $\varepsilon>0$. We also provided a quantitative version with a lower bound when the exponent $1/2-\varepsilon$ is replaced by a smaller exponent $γ<3/7-\varepsilon$. In this article, we establish a quantitative version for the exponent $1/2-\varepsilon$, where we confine ourselves to the particular case of sums of two squares.
format Preprint
id arxiv_https___arxiv_org_abs_2508_18044
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Diophantine approximation with sums of two squares II
Baier, Stephan
Rahaman, Habibur
Number Theory
11J25, 11J54, 11J71, 11L05, 11E25
Recently, the authors showed that for every irrational number $α$, there exist infinitely many positive integers $n$ represented by any given positive definite binary quadratic form $Q$, satisfying $||αn||<n^{-(1/2-\varepsilon)}$ for any fixed $\varepsilon>0$. We also provided a quantitative version with a lower bound when the exponent $1/2-\varepsilon$ is replaced by a smaller exponent $γ<3/7-\varepsilon$. In this article, we establish a quantitative version for the exponent $1/2-\varepsilon$, where we confine ourselves to the particular case of sums of two squares.
title Diophantine approximation with sums of two squares II
topic Number Theory
11J25, 11J54, 11J71, 11L05, 11E25
url https://arxiv.org/abs/2508.18044