A smooth counterexample to Nori's conjecture on the fundamental group scheme

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/114215We show that Nori's fundamental group scheme π(X,x) does not base change correctly under extension of the base field for certain smooth projective ordinary curves X of genus 2 defined over a field of characteristic 2.5 pagesAlgebraic Geometry14H40, 14D20A smooth counterexample to Nori's conjecture on the fundamental group schemetext