General solutions for flat Friedmann universe filled by perfect fluid and scalar field with exponential potential

H. Dehnen, V. R. Gavrilov, V. N. Melnikov

We study integrability by quadrature of a spatially flat Friedmann model containing both a minimally coupled scalar field $\varphi$ with an exponential potential $V(ϕ)\sim\exp[-\sqrt{6}σ…