关于Nori基本群方案表表示的有限性结果
代数几何
2026-04-23 v2
摘要
设为一个在次域上的几何连通光滑射影变数。对于任意给定的秩,我们证明了本征有限束的基本群到的表示在同构类数目上是有限的。等价地,可证明秩为的本征有限束的同构类数目是有限的。这解答了C.Gasbarri的一个问题。
引用
@article{arxiv.2601.13917,
title = {A finiteness result on representations of Nori's fundamental group scheme},
author = {Xiaodong Yi},
journal= {arXiv preprint arXiv:2601.13917},
year = {2026}
}
备注
The proof for Lemma 2.3 in the previous version is incorrect. In the new version the same assertion appears as Proposition 2.7 with corrected proof. The article has been reorganized. 9 pages. Comments welcome!