Why Jefimenko equations ? (A comment on "Multipole radiation fields from the Jefimenko equation...", by R. de Melo e Souza et al, Am. J. Phys. 77 (1), 67-72 (2009), arXiv:0812.4679)

2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/226796In this comment, we discuss some features of the multipolar expansion of the power radiated by a confined system of charges and currents, and the possibility of generalization to a higher arbitrary order of the multipolar expansion.A shorter version of this comment is submitted to Am. J. PhysClassical PhysicsWhy Jefimenko equations ? (A comment on "Multipole radiation fields from the Jefimenko equation...", by R. de Melo e Souza et al, Am. J. Phys. 77 (1), 67-72 (2009), arXiv:0812.4679)text