2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/162393We discuss the characterization of relative equilibria of Lagrangian systems with symmetry.16 pages, to appear in J. Geom. PhysDifferential GeometryMathematical Physics34A05; 34A26; 37J15; 37J15; 70H03text