Jan, XavierLlosa, JosepMolina, Alfred2012-04-262012-04-2619890022-2488https://hdl.handle.net/2445/24552Unlike the 1/c2 approximation, where classical electrodynamics is described by the Darwin Lagrangian, here there is no Lagrangian to describe retarded (resp., advanced) classical electrodynamics up to 1/c3 for two-point charges with different masses.3 p.application/pdfeng(c) American Institute of Physics, 1989ElectrodinàmicaRelativitat (Física)Física matemàticaElectrodynamicsRelativity (Physics)Mathematical physicsLagrangian formalism and retarded classical electrodynamicsinfo:eu-repo/semantics/article33561info:eu-repo/semantics/openAccess