On the quadratic twist of elliptic curves with full 2-torsion

Let [Formula: see text] be an elliptic curve with full [Formula: see text]-torsion group, where [Formula: see text] and [Formula: see text] are coprime integers and [Formula: see text] is a square. Assume that the [Formula: see text]-Selmer group of [Formula: see text] has rank two. We characterize all quadratic twists of [Formula: see text] with Mordell-Weil rank zero and [Formula: see text]-primary Shafarevich-Tate groups [Formula: see text], under certain conditions. We also obtain a distribution result for these elliptic curves.

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Publication Details

Journal
International Journal of Number Theory
Published
2026-09-18
DOI
https://doi.org/10.1142/s1793042127500175
Primary Topic
Algebraic Geometry and Number Theory
Type
article
Field-Weighted Citation Impact
0.00

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article

On the quadratic twist of elliptic curves with full 2-torsion

Shenxing Zhang, Zhangjie Wang
International Journal of Number Theory
Algebraic Geometry and Number Theory
article

On the quadratic twist of elliptic curves with full 2-torsion

Shenxing Zhang, Zhangjie Wang
article en

Abstract

Let [Formula: see text] be an elliptic curve with full [Formula: see text]-torsion group, where [Formula: see text] and [Formula: see text] are coprime integers and [Formula: see text] is a square. Assume that the [Formula: see text]-Selmer group of [Formula: see text] has rank two. We characterize all quadratic twists of [Formula: see text] with Mordell-Weil rank zero and [Formula: see text]-primary Shafarevich-Tate groups [Formula: see text], under certain conditions. We also obtain a distribution result for these elliptic curves.

International Journal of Number Theory
Twitter (United States) (US)
National Natural Science Foundation of China, Natural Science Foundation of Shaanxi Province
Openalex Percentile: Top 98%
Algebraic Geometry and Number Theory
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