INHOMOGENEOUS KALUZA-KLEIN MODEL WITH HEAT-FLOW

We present a cosmological model in Kaluza-Klein spacetime with a matte r field obeying an equation of state and a radial heat flow. The (3+1) -space resembles that of a Robertson-Walker spacetime, but unlike the corresponding four-dimensional case our five-dimensional spacetime adm its a radial flow of heat even when the three-space curvature remains a constant. Further our solution exhibits the desirable feature of dim ensional reduction.