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arXiv 2301.04864math.AGmath.NT
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曲线模空间的拓扑结构与正特征的Anabel几何

Topological Structures of Moduli Spaces of Curves and Anabelian Geometry in Positive Characteristic

Zhi Hu, Yu Yang, Runhong Zong

摘要:

本文研究了一类新的关于正特征光滑点稳定曲线的阿那贝尔现象。这表明曲线的模空间的拓扑结构可以从阿那贝尔几何的观点来理解。我们建立了一些新的Anabelian几何结构,将特征$p>0$代数闭域上曲线的驯服基本群与曲线的模空间联系起来。这些猜想是Tamagawa提出的关于特征为$p>0$的代数闭域上曲线的Grothendieck猜想的弱Isom猜想的推广。此外,我们还证明了对于亏格$0$的曲线的模空间中的某些点,这些图是成立的。

英文摘要:

In the present paper, we study a new kind of anabelian phenomenon concerning the smooth pointed stable curves in positive characteristic. It shows that the topological structures of moduli spaces of curves can be understood from the viewpoint of anabelian geometry. We formulate some new anabelian-geometric conjectures relating the tame fundamental groups of curves over algebraically closed fields of characteristic $p>0$ to the moduli spaces of curves. These conjectures are generalized versions of the weak Isom-version of the Grothendieck conjecture for curves over algebraically closed fields of characteristic $p>0$ which was formulated by Tamagawa. Moreover, we prove that the conjectures hold for certain points lying in the moduli space of curves of genus $0$.

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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