  Recently, there has been suggestions that the apparent accelerated expansion
of the universe is due not to a cosmological constant, but rather to
inhomogeneities in the distribution of matter. In this work, we investigate a
specific class of inhomogeneous models that can be solved analytically, namely
the dust-dominated Lemaitre-Tolman-Bondi universe models. We show that they do
not permit accelerated cosmic expansion.
