Variational formulation of the relativistic theory of microelectromagnetism

Abstract

By adjoining a set of adequate potentials to the classical electromagnetic potential, it is possible to formulate a variational principle that yields the equations of the micromorphic EM theory proposed by Eringen and Kafadar [J. Math. Phys. 11, 1984 (1970)]. The energy-momentum law for micromorphic EM fields is obtained and constitutive equations are derived for relativistic EM-elastic fields. Copyright © 1974 American Institute of Physics.