Cosmological perturbations in conformal gravity II
  In this paper we continue a study of cosmological perturbations in the
conformal gravity theory. In previous work we had obtained a restricted set of
solutions to the cosmological fluctuation equations, solutions that were
required to be both transverse and synchronous. Here we present the general
solution. We show that in a conformal invariant gravitational theory
fluctuations around any background that is conformal to flat (backgrounds that
include the cosmologically interesting Robertson-Walker and de Sitter
geometries) can be constructed from the (known) solutions to fluctuations
around a flat background. For this construction to hold it is not necessary
that the perturbative geometry associated with the fluctuations itself be
conformal to flat. Using this construction we show that in a conformal
Robertson-Walker cosmology early universe fluctuations grow as $t^4$. We
present the scalar, vector, tensor decomposition of the fluctuations in the
conformal theory, and compare and contrast our work with the analogous
treatment of fluctuations in the standard Einstein gravity theory.
