On the initial value problem for the electromagnetic wave equation in Friedmann-Robertson-Walker space-times
arXiv:1910.06676
Abstract
We solve the source free electromagnetic wave equation in Friedmann-Robertson-Walker space-times for curvature and . Deriving a solution expression in the form of spherical means we deduce and compare two properties of the Maxwell propagator namely, decay rates, as well as continuity through the space-time singularity to that of the scalar wave equation presented by Abbasi and Craig [1].