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arXiv · 2401.17369

Construction of diagonal quintic threefolds with infinitely many rational points

Maciej Ulas
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Abstract

In this note we present a construction of an infinite family of diagonal quintic threefolds defined over $\Q$ each containing infinitely many rational points. As an application, we prove that there are infinitely many quadruples $B=(B_{0}, B_{1}, B_{2}, B_{3})$ of co-prime integers such that for a suitable chosen integer $b$ (depending on $B$), the equation $B_{0}X_{0}^5+B_{1}X_{1}^5+B_{2}X_{2}^5+B_{3}X_{3}^{5}=b$ has infinitely many positive integer solutions.

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Maciej Ulas. 2024-01-30. Construction of diagonal quintic threefolds with infinitely many rational points. https://arxiv.org/abs/2401.17369

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