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arXiv 2201.11839math.NT
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CM椭圆曲线整除的局部-整体原理

The local-global principle for divisibility in CM elliptic curves

Brendan Creutz, Sheng Lu

摘要:

本文研究数域上CM椭圆曲线的Mordell-Weil群的局部-整体整除性原理。对于每一个素数$p$,我们给出了一个数域的度$d$的下界,在该数域上存在CM椭圆曲线,该曲线给出了$p$的幂整除的局部-全局原理的一个反例。作为推论,我们推出至多有1000条椭圆曲线(有或无CM)是$p > 2d+1$的反例.我们还推导出$7$的幂整除的局部-整体原理在二次域上成立。

英文摘要:

We consider the local-global principle for divisibility in the Mordell-Weil group of a CM elliptic curve defined over a number field. For each prime $p$ we give sharp lower bounds on the degree $d$ of a number field over which there exists a CM elliptic curve which gives a counterexample to the local-global principle for divisibility by a power of $p$. As a corollary we deduce that there are at most finitely many elliptic curves (with or without CM) which are counterexamples with $p > 2d+1$. We also deduce that the local-global principle for divisibility by powers of $7$ holds over quadratic fields.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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