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arXiv 2309.02016math.NT
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关于 $\nathbb{Z}_p^2$-扩张中非普通素数的动机的带符号 Selmer 群

On the signed Selmer groups for motives at non-ordinary primes in $\mathbb{Z}_p^2$-extensions

Jishnu Ray, Florian Sprung

AI总结:

本文推广了椭圆曲线的控制定理,证明了虚二次域上非普通动机的多符号 Selmer 群在 $\mathbb{Z}_p^2$-扩张上的控制定理,并给出余挠性条件及比较 $\mu$-不变量。

摘要:

将 Kobayashi 和第二作者关于在素数 $p$ 处具有超奇异约化的椭圆曲线的工作推广,Büyükboduk 和 Lei 在数域 $F$ 的 cyclotomic $\mathbb{Z}_p$-扩张上为更一般的非普通动机构造了多符号 Selmer 群。特别地,他们的构造适用于 $F$ 上在所有 $p$ 之上的素数处具有良好超奇异约化的阿贝尔簇。在本文中,我们仔细研究 $F$ 为虚二次域的情形,并证明一个控制定理(推广了 Kim 关于椭圆曲线的控制定理),该定理针对 $F$ 的极大阿贝尔 pro-$p$ 扩张(即 $F$ 的 $\mathbb{Z}_p^2$-扩张)上的非普通动机的多符号 Selmer 群,该扩张在 $p$ 之外不分歧。我们应用该定理推导出这些多符号 Selmer 群在相应的二变量 Iwasawa 代数上是余挠的充分条件。此外,我们比较了两个模 $p$ 同余的表示在 $\mathbb{Z}_p^2$-扩张上的多符号 Selmer 群的 Iwasawa $\mu$-不变量。

英文摘要:

Generalizing the work of Kobayashi and the second author for elliptic curves with supersingular reduction at the prime $p$, Büyükboduk and Lei constructed multi-signed Selmer groups over the cyclotomic $\mathbb{Z}_p$-extension of a number field $F$ for more general non-ordinary motives. In particular, their construction applies to abelian varieties over $F$ with good supersingular reduction at all the primes of $F$ above $p$. In this article, we scrutinize the case in which $F$ is imaginary quadratic, and prove a control theorem (that generalizes Kim's control theorem for elliptic curves) of multi-signed Selmer groups of non-ordinary motives over the maximal abelian pro-$p$ extension of $F$ that is unramified outside $p$, which is the $\mathbb{Z}_p^2$-extension of $F$. We apply it to derive a sufficient condition when these multi-signed Selmer groups are cotorsion over the corresponding two-variable Iwasawa algebra. Furthermore, we compare the Iwasawa $μ$-invariants of multi-signed Selmer groups over the $\mathbb{Z}_p^2$-extension for two such representations which are congruent modulo $p$.

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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