A finiteness result on representations of Nori's fundamental group scheme
Algebraic Geometry
2026-04-23 v2
Abstract
Let be a pointed geometrically connected smooth projective variety over a sub--adic field . For any given rank , we prove that there are only finitely many isomorphism classes of representations , where is Nori's fundamental group of essentially finite bundles. Equivalently, there are only finitely many isomorphism classes of essentially finite bundles of rank . This answers a question from C.Gasbarri.
Keywords
Cite
@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}
}
Comments
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!