2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/64213This paper has been withdrawn by the author. The main result is wrong, as M.Matignon and C. Lehr provided a counterexample to it.This paper has been withdrawnAlgebraic GeometryCommutative Algebra14H37,14D15,13D10Size of families of curves with large automorphism group in positive characteristictext