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arXiv 1602.01894math.NTmath.AG
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按高度排序的椭圆曲线数据库及Selmer群和秩的分布

Databases of elliptic curves ordered by height and distributions of Selmer groups and ranks

Jennifer S. Balakrishnan, Wei Ho, Nathan Kaplan, Simon Spicer, William Stein, James Weigandt

摘要:

大多数与椭圆曲线的秩相关的系统数据表按导体对曲线进行排序。最近的事态发展,导致工作的Bhargava,Shankar研究的平均大小的$n$ -塞尔默群,已经给出了新上界的平均代数秩在家庭的椭圆曲线超过$\mathbb{Q}$有序的高度。我们描述的数据库中的椭圆曲线在$\mathbb{Q}$排序的高度,我们计算的行列和$2$ -Selmer组的大小,其分布也可以比较这些理论结果。在这些数据库中观察到的一个引人注目的新现象是,随着身高的增加,平均排名最终会下降。

英文摘要:

Most systematic tables of data associated to ranks of elliptic curves order the curves by conductor. Recent developments, led by work of Bhargava-Shankar studying the average sizes of $n$-Selmer groups, have given new upper bounds on the average algebraic rank in families of elliptic curves over $\mathbb{Q}$ ordered by height. We describe databases of elliptic curves over $\mathbb{Q}$ ordered by height in which we compute ranks and $2$-Selmer group sizes, the distributions of which may also be compared to these theoretical results. A striking new phenomenon observed in these databases is that the average rank eventually decreases as height increases.

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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