  We present a method that yields three decoupled covariant equations for three
complex scalars, which completely govern electromagnetic perturbations of
non-vacuum, locally rotationally symmetric class II spacetimes. One of these
equations is equivalent to the previously established generalized Regge-Wheeler
equation for electromagnetic fields. The remaining two equations are a direct
generalization of the Bardeen-Press equations. The approach undertaken makes
use of the well established 3+1 (and 2+1+1) formalism, and therefore, it is an
ideal setting for specifying interpretable energy-momentum on an initial
spacelike three-slice as the perturbation sources to the resultant
electromagnetic radiation.

General Relativity and Quantum Cosmology