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arXiv · 2411.17599

Popular differences in primes along fractional powers

Bora Çalım·Ioannis Iakovakis·Sophie Long·Jack Moffatt·Deborah Wooton
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Abstract

We prove that $\mathop{\mathbb{E}}_{m \leq M} \mathop{\mathbb{E}}_{n \leq N} \Lambda(n) \Lambda\bigl(n + \lfloor m^c \rfloor\bigr) = 1 + \rm{O}(\log^{2 - Bc} N)$, where $c > 2$ is a non-integer, $B \geq 3/c$, and $M$ is of order $N^{1/c} \log^{-B} N$. As a combinatorial consequence, we obtain that the primes contain infinitely many pairs whose difference belongs to the Piatetski-Shapiro sequence $\bigl\{\lfloor m^c \rfloor \colon m \in \mathbb{N} \bigr\}$ for any non-integer $c > 2$.

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Bora Çalım, Ioannis Iakovakis, Sophie Long, Jack Moffatt, Deborah Wooton. 2024-11-26. Popular differences in primes along fractional powers. https://arxiv.org/abs/2411.17599

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