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arXiv 0910.0605math.AGmath.NT
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关于算术基本群

On the arithmetic fundamental groups

Feng-Wen An

摘要:

本文利用拟伽罗瓦闭覆盖定义算术概型的qc基本群。然后我们给出了这类群的一个计算,并证明了算术概型的标准基本群是qc基本群的正规子群,这就构成了本文的主要定理。因此,我们的小组给了我们一个先验估计的etale基本群。商群反映了方案的拓扑性质。

英文摘要:

In this paper we will define a qc fundamental group for an arithmetic scheme by quasi-galois closed covers. Then we will give a computation for such a group and will prove that the etale fundamental group of an arithmetic scheme is a normal subgroup in our qc fundamental group, which make up the main theorem of the paper. Hence, our group gives us a prior estimate of the etale fundamental group. The quotient group reflects the topological properties of the scheme.

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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