Analysis of Maxwell Equations in a Gravitational Field
  In a gravitational field, we analyze the Maxwell equations, the correponding electromagnetic wave and continuity equations. A particular solution for parellel electric and magnetic fields in a gravitational background is presented. These solutions also satisfy the free-wave equations and the phenomenology suggested by plasma physics. 
Sortelano Araujo Diniz (UFES, Brazil), Carlos Pinheiro (UFES, Brazil),   F.C. Khanna (UofA, Canada)