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Main Authors: Choi, Seokhyun, Im, Bo-Hae, Kim, Beomho
Format: Preprint
Published: 2026
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Online Access:https://arxiv.org/abs/2603.29686
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author Choi, Seokhyun
Im, Bo-Hae
Kim, Beomho
author_facet Choi, Seokhyun
Im, Bo-Hae
Kim, Beomho
contents Let $E/k$ be a non-isotrivial elliptic curve over a global function field $k$ of characteristic $p>3$, and $G\subset \mathrm{Gal}(k^{\mathrm{sep}}/k)$ be a topologically finitely generated subgroup. We prove that if $E/k$ has analytic rank $1$, then its rank over the fixed subfield $L^G$ is infinite, where $L$ is the infinite ring class extension of some finite separable extension $K/k$. If $E/k$ has analytic rank $0$, then we prove that the same holds provided there exists an imaginary quadratic extension $K/k$ such that $E/K$ has analytic rank $1$ and satisfies the Heegner hypothesis.
format Preprint
id arxiv_https___arxiv_org_abs_2603_29686
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Analytic rank-one elliptic curves over function fields and their rank over certain ring class fields
Choi, Seokhyun
Im, Bo-Hae
Kim, Beomho
Number Theory
11G05
Let $E/k$ be a non-isotrivial elliptic curve over a global function field $k$ of characteristic $p>3$, and $G\subset \mathrm{Gal}(k^{\mathrm{sep}}/k)$ be a topologically finitely generated subgroup. We prove that if $E/k$ has analytic rank $1$, then its rank over the fixed subfield $L^G$ is infinite, where $L$ is the infinite ring class extension of some finite separable extension $K/k$. If $E/k$ has analytic rank $0$, then we prove that the same holds provided there exists an imaginary quadratic extension $K/k$ such that $E/K$ has analytic rank $1$ and satisfies the Heegner hypothesis.
title Analytic rank-one elliptic curves over function fields and their rank over certain ring class fields
topic Number Theory
11G05
url https://arxiv.org/abs/2603.29686