2001/01/31 by A. A. Blinkouski, A. K. Gorbatsievich
Physics and Astronomy · #gr-qc
published as Gravitation & Cosmology, Vol.7 (2001), No.4, pp. 281-285 · 8 pages
arxiv created 2003/11/27 · arxiv updated 2009/11/30
A homogeneous and isotropic model of the Universe is considered in the framework of the five-dimensional Projective Unified Field Theory in which the gravitation is described by both space-time curvature and some hypothetical scalar field (sigma-field). We propose a generation method for obtaining exact solutions. New exact Friedmann-like solutions for a dust model and inflationary solutions are found. It is shown that in the framework of exponential type inflation we obtain a natural explanation of why at present we do not observe sigma-field effects or why these effects are negligible.