2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/76402A companion result of the the Tits alternative for $Out(F_n)$ is proved: Every solvable subgroup of $Out(F_n)$ is finitely generated and virtually abelian.21 pagesGeometric TopologySolvable subgroups of Out(F_n) are virtually abeliantext