2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/84242The significance of the Lorentz gauge as a constraint on solutions of Maxwellian waves is discussed. It is proved that recent claims of superluminal propagation of electromagnetic waves rely on an erroneous basis.6 pages, 0 figures, 17 referencesOpticsGeneral Physicstext