An extension of Nori fundamental group

An extension of Nori fundamental group
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海苔基本群的延伸

DOI:
10.1080/00927872.2016.1236936
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发表时间:
2017
期刊:
Comm. Algebra
影响因子:
--
通讯作者:
Shusuke Otabe
Shusuke Otabe
中科院分区:
--
文献类型:
--
作者:
Noda;M.;Inoue;T.;and Kakizawa;S.;Shusuke Otabe

文献摘要

相似文献

本文研究了Nori基本群在基域特征为0的情形下的某种扩张,给出了它的结构定理,并证明了对于亏格>1的光滑射影曲线,Nori基本群忠实地作用在泛覆盖上的幂单丛范畴上。在heng = 1的情况下,我们给出了一个更精细的结果.
In this paper, we study a certain extension of Nori’s fundamental group in the case where a base field is of characteristic 0 and give structure theorems about it. As a result for a smooth projective curve with genusg>1, we prove that Nori’s fundamental group acts faithfully on the category of unipotent bundles on the universal covering. In the case wheng= 1, we give a more finer result.