Cosmological Effects of Nonlinear Electrodynamics
  It will be shown that a given realization of nonlinear electrodynamics, used as source of Einstein's equations, generates a cosmological model with interesting features, namely a phase of current cosmic acceleration, and the absence of an initial singularity, thus pointing to a way to solve two important problems in cosmology. 
M. Novello, E. Goulart, J. M. Salim, S. E. Perez Bergliaffa