2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/28341We discuss examples of (1+1)-dimensional models where the perturbative renormalization group (RG) indicates a tendency to restore the symmetry in the strong coupling limit. We show that such restoration does occur sometimes, but the pertubative RG cannot be reliably used to detect it.5 pages, 1 figureStrongly Correlated Electronstext