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Quadratic points on non-split Cartan modular curves
International Journal of Number Theory ( IF 0.7 ) Pub Date : 2021-07-17
Philippe Michaud-Rodgers

In this paper, we study quadratic points on the non-split Cartan modular curves Xns(p), for p=7,11, and 13. Recently, Siksek proved that all quadratic points on Xns(7) arise as pullbacks of rational points on Xns+(7). Using similar techniques for p=11, and employing a version of Chabauty for symmetric powers of curves for p=13, we show that the same holds for Xns(11) and Xns(13). As a consequence, we prove that certain classes of elliptic curves over quadratic fields are modular.



中文翻译:

非分裂 Cartan 模曲线上的二次点

在本文中,我们研究了非分裂 Cartan 模曲线上的二次点 Xn(), 为了 =7,11,13. 最近,Siksek 证明了上的所有二次点Xn(7) 作为理性点的回调出现 Xn+(7). 使用类似的技术=11,并使用 Chabauty 的一个版本来计算曲线的对称幂 =13,我们证明同样适用于 Xn(11)Xn(13). 因此,我们证明了二次域上某些类别的椭圆曲线是模的。

更新日期:2021-07-19
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