ID: 2212.14646

On Korobov bound concerning Zaremba's conjecture

December 30, 2022

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Nikolay Moshchevitin, Brendan Murphy, Ilya Shkredov
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We prove in particular that for any sufficiently large prime $p$ there is $1\le a<p$ such that all partial quotients of $a/p$ are bounded by $O(\log p/\log \log p)$. For composite denominators a similar result is obtained. This improves the well--known Korobov bound concerning Zaremba's conjecture from the theory of continued fractions.

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