INHOMOGENEOUS COSMOLOGICAL MODELS WITH HEAT-FLUX

We present a general class of inhomogeneous cosmological models filled with non-thermalized perfect fluid by assuming that the background sp acetime admits two space-like commuting Killing vectors and has separa ble metric coefficients. The singularity structure of these models dep ends on the choice of the parameters and the metric functions. A numbe r of previously known perfect fluid models follow as particular cases of this general class. Physical and geometrical features of these mode ls are studied and the general expression for temperature distribution is given.