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arXiv 2312.08005math.NTmath.AG
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局部共轭的伽罗瓦截面

Locally conjugate Galois sections

Wojciech Porowski

AI总结:

本文研究数域上双曲曲线的平展同伦正合序列截面,证明了局部共轭(密度1赋值集上分解群限制共轭)蕴含整体共轭的局部-整体原理,该结论是核心结果有限覆盖性质的推论。

摘要:

我们研究数域上双曲曲线的平展同伦正合序列的截面。我们证明,在密度为1的赋值集上,限制到分解群时共轭的两个截面是整体共轭的,从而建立了截面共轭类的局部-整体原理。事实上,该结果是我们关于平展同伦正合序列截面的一个更一般性质(即有限覆盖性质)的推论,而有限覆盖性质是我们证明的主要结果。

英文摘要:

We consider sections of the étale homotopy exact sequence of a hyperbolic curve over a number field. We prove that two sections whose restrictions to decomposition groups are conjugate on a set of valuations of density one are globally conjugate, which establishes the local-global principle for the conjugacy classes of sections. In fact, we obtain this result as a corollary of a more general property concerning sections of the étale homotopy exact sequence, so-called finite covering property, which we prove as our main result.

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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