NEW EXACT-SOLUTIONS IN STANDARD INFLATIONARY MODELS

The exact solutions in the standard inflationary model based on the se lf-interacting scalar field minimally coupled to gravity are considere d. The shape's freedom of the self-interacting potential V(phi) is pos tulated to obtain a new set of the exact solutions in the framework of Friedmann-Robertson-Walker Universes. The general solution was found in the case of power law inflation. We obtained new solutions and comp ared them with obtained ones earlier for the exponential type inflatio n. (C) 1997 Published by Elsevier Science B.V.