2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/153088The fundamental groups of most (conjecturally, all) closed 3-manifolds with uniform geometries have finite complete rewriting systems. The fundamental groups of a large class of amalgams of circle bundles also have finite complete rewriting systems. The general case remains open.DVI file only, 13 pagesGroup Theorytext