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关于Nori基本群的同伦正合序列

代数几何 2010-06-07 v3

作者: Hélène Esnault , Phùng Hô Hai , Eckart Viehweg

在 arXiv 上查看 ↗ PDF ↗

摘要

与Grothendieck的平展基本群不同，Nori基本群一般不满足同伦正合序列。我们给出了迫使该序列正合的充分必要条件。

关键词

Nori基本群同伦正合序列平展基本群代数几何正合条件

引用

@article{arxiv.0908.0498,
  title  = {On the homotopy exact sequence for Nori's fundamental group},
  author = {Hélène Esnault and Phùng Hô Hai and Eckart Viehweg},
  journal= {arXiv preprint arXiv:0908.0498},
  year   = {2010}
}

备注

Lei Zhang found a gap in the proof of Proposition 3.4. We withdraw the article, at least for the time being