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arXiv 1809.09285math.NT
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Fermat曲线的雅可比簇的根数和Selmer群

Root numbers and Selmer groups for the Jacobian varieties of Fermat curves

Jie Shu

摘要:

设$p$为奇素数。设$K$是第$p$个分圆域,$F$是它的最大实子域.给出了Fermat曲线$X^p+Y^p=δ$的雅可比簇的根数的一般公式,其中$δ$是整数.作为这些一般公式的应用,我们导出了Fermat曲线的雅可比簇族的根数的等分布。当$p\nmid δ$时,我们绑定了这些雅可比簇的塞尔默群。此外,如果$p$是正则的,并且$K$除$δ$的所有素理想在$K/F$中是惰性的,则Selmer群被明确地确定,并且我们验证了这些雅可比簇的$p$ -宇称图.我们还给出了一个渐近下界的费马Jabobian的$p$ -宇称猜想持有的数量。

英文摘要:

Let $p$ be an odd prime number. Let $K$ be the $p$-th cyclotomic field and $F$ its maximal real subfield. We give general formulae of the root numbers of the Jacobian varieties of the Fermat curves $X^p+Y^p=δ$ where $δ$ is an integer. As an application of these general formulae, we derive the equidistribution of the root numbers for the families of Jacobian varieties of the Fermat curves. When $p\nmid δ$, we bound the Selmer groups of these Jacobian varieties. Moreover, if $p$ is regular and all prime ideals of $K$ dividing $δ$ are inert in $K/F$, the Selmer groups are explicitly determined and we verify the $p$-parity conjectures of these Jacobian varieties. We also give an asymptotic lower bound for the number of Fermat Jabobians for which the $p$-parity conjecture holds.

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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