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arXiv · 2502.19566

Upper bounds for analytic ranks of elliptic curves over cyclotomic fields

Agniva Dasgupta·Rizwanur Khan
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Abstract

Let $E$ be an elliptic curve defined over $\mathbb{Q}$. We show that the analytic rank of $E$ over the cyclotomic extension $\mathbb{Q}(e^{2\pi i/q})$ is bounded above by $q^{45/52+\varepsilon}$, as $q\to \infty$ through the primes. This improves the bound $q^{7/8+\varepsilon}$ established by Chinta.

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Agniva Dasgupta, Rizwanur Khan. 2025-02-26. Upper bounds for analytic ranks of elliptic curves over cyclotomic fields. https://arxiv.org/abs/2502.19566

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