  Warm inflationary universe models in the context of intermediate expansion,
between power law and exponential, are studied. General conditions required for
these models to be realizable are derived and discussed. This study is done in
the weak and strong dissipative regimes. The inflaton potentials considered in
this study are negative-power-law and powers of logarithms, respectively. The
parameters of our models are constrained from the WMAP three and five year
data.
