arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1906.06258math.NT
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具有驯服势半稳定约化的超椭圆曲线模型

Models of Hyperelliptic Curves with Tame Potentially Semistable Reduction

Omri Faraggi, Sarah Nowell

摘要:

令$C$为离散值域$K$上的超椭圆曲线$y^2 = f(x)$。$f(x)$的根之间的$p$ -adic距离可以用一个称为聚类图的完全组合对象来描述。我们证明了$C$的簇图,连同$f$的首项系数和$\mathrm{Gal}(\bar{K}/K)$对$f$根的作用,完全决定了$C$的最小严格正交模型的特殊纤维的组合.特别是,我们给出了一个明确的描述的特殊纤维在此数据。

英文摘要:

Let $C$ be a hyperelliptic curve $y^2 = f(x)$ over a discretely valued field $K$. The $p$-adic distances between the roots of $f(x)$ can be described by a completely combinatorial object known as the cluster picture. We show that the cluster picture of $C$, along with the leading coefficient of $f$ and the action of $\mathrm{Gal}(\bar{K}/K)$ on the roots of $f$, completely determines the combinatorics of the special fibre of the minimal strict normal crossings model of $C$. In particular, we give an explicit description of the special fibre in terms of this data.

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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