The pre-maxwell equations

Abstract

For space-time we consider linear differential equations from which the Maxwell equations follow. These equations we call pre-Maxwell equations. If the pre-Maxwell equations hold then the tensor of the electromagnetic field F, the four-current J and the energy-momentum tensor T will have some interestingp roperties which we present. Finally we identify integrals of the pre-Maxwell equations in flat and in de Sitter space-time.