中文

Nori 基本群的推广

代数几何 2021-08-25 v2

摘要

在本文中,我们研究在基域特征为 0 时 Nori 基本群的某种推广,并给出关于它的结构定理。作为结果,对于亏格 g>1g>1 的光滑射影曲线,我们证明 Nori 基本群在泛覆盖上的幂零丛范畴上忠实作用。在 g=1g=1 的情形,我们给出了更精细的结果。

关键词

引用

@article{arxiv.1508.04950,
  title  = {An Extension of Nori Fundamental Group},
  author = {Shusuke Otabe},
  journal= {arXiv preprint arXiv:1508.04950},
  year   = {2021}
}

备注

30 pages, to appear in Comm Alg, Remark 1.6 is included, dropped the smoothness assumption from the most part, changed to use a word "unipotent bundle" instead of "nilpotent bundle", at a suggestion of the referee, Section 5.2 is included