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arXiv 1502.07370math.NT
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Shimura曲线Jacobian上的有理扭点

Rational torsion points on Jacobians of Shimura curves

Hwajong Yoo

摘要:

设$p$和$q$是不同的素数。考虑与$\mathbb{Q}$上的判别式$pq$的不定四元数代数相关联的Shimura曲线$\mathcal{X}$。令$J$是$\mathcal{X}$的雅可比簇,它是$\mathbb{Q}$上的阿贝尔簇。对于奇素数$\ell$,给出了$J$上不存在$\ell$阶有理点的充分条件.作为应用,我们从$J_0(pq)$到$J$的新商中找到了同构核的一些非平凡子群.

英文摘要:

Let $p$ and $q$ be distinct primes. Consider the Shimura curve $\mathcal{X}$ associated to the indefinite quaternion algebra of discriminant $pq$ over $\mathbb{Q}$. Let $J$ be the Jacobian variety of $\mathcal{X}$, which is an abelian variety over $\mathbb{Q}$. For an odd prime $\ell$, we provide sufficient conditions for the non-existence of rational points of order $\ell$ on $J$. As an application, we find some non-trivial subgroups of the kernel of an isogeny from the new quotient of $J_0(pq)$ to $J$.

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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