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A finiteness result on representations of Nori's fundamental group scheme
Published 20 Jan 2026 in math.AG | (2601.13917v1)
Abstract: Let $(X,x)$ be a pointed geometrically connected smooth projective variety over a sub-$p$-adic field $K$. For any given rank $n$, we prove that there are only finitely many isomorphism classes of representations $π{1}{EF}(X,x)\rightarrow \mathrm{GL}{n}$, where $π_{1}{EF}(X,x)$ is Nori's fundamental group of essentially finite bundles. Equivalently, there are only finitely many isomorphism classes of essentially finite bundles of rank $n$. This answers a question from C.Gasbarri.
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