A note on general isolation result in Diophantine Approximation

Fuente: arXiv
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Main Authors: Pitcyn, Sergei, Moshchevitin, Nikolay
Format: Preprint
Published: 2025
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author Pitcyn, Sergei
Moshchevitin, Nikolay
author_facet Pitcyn, Sergei
Moshchevitin, Nikolay
contents In the present paper we give very simple general statements which deal with approximation of a real number by rationals and are related to isolation phenomenon. In particular we study functions $ f(x)>f_1(x)>0$ such that existence of solutions $\frac{p}{q}$ of Diophantine inequality $ \left| α-\frac{p}{q}\right|< \frac{f(q)}{q^2} $ leads to the existence of solutions of inequality $ \left| α-\frac{p}{q}\right|< \frac{f_1(q)}{q^2} $.
format Preprint
id arxiv_https___arxiv_org_abs_2509_25628
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A note on general isolation result in Diophantine Approximation
Pitcyn, Sergei
Moshchevitin, Nikolay
Number Theory
11J04, 11J06, 11J13
In the present paper we give very simple general statements which deal with approximation of a real number by rationals and are related to isolation phenomenon. In particular we study functions $ f(x)>f_1(x)>0$ such that existence of solutions $\frac{p}{q}$ of Diophantine inequality $ \left| α-\frac{p}{q}\right|< \frac{f(q)}{q^2} $ leads to the existence of solutions of inequality $ \left| α-\frac{p}{q}\right|< \frac{f_1(q)}{q^2} $.
title A note on general isolation result in Diophantine Approximation
topic Number Theory
11J04, 11J06, 11J13
url https://arxiv.org/abs/2509.25628