Abstract
Let \(\theta \) be an irrational number and \(\varphi \) a real number. Let \(C > 2\) and \(\varepsilon > 0\). There are infinitely many positive integers n free of prime factors \(> (\log n )^C\), such that \(\Vert \theta n + \varphi \Vert < n^{-\left( \frac{1}{3} - \frac{2}{3C}\right) + \varepsilon }\). Here \(\Vert y\Vert \) is the distance from y to \(\mathbb Z\).
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Baker, R. Diophantine approximation with smooth numbers. Ramanujan J 61, 49–54 (2023). https://doi.org/10.1007/s11139-020-00361-z
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DOI: https://doi.org/10.1007/s11139-020-00361-z