Scaling Solutions and reconstruction of Scalar Field Potentials

Abstract

Starting from the hypothesis of scaling solutions, the general exact form of the scalar field potential is found. In the case of two fluids, it turns out to be a negative power of hyperbolic sine. In the case of three fluids the analytic form is not found, but is obtained by quadratures.

5 pages, 2 figures, some changes in references and figures captions

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