Exact Solutions for Cosmological Models with a Scalar Field
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We consider the existence of a Noether symmetry in the scalar-tensor theory of gravity in flat Friedman Robertson Walker (FRW) cosmology. The forms of coupling function $ω(ϕ)$ and generic potential $V(ϕ)$ are obtained by requiring the existence of a Noether symmetry for such theory. We derive exact cosmological solutions of the field equations from a point-like Lagrangian.
7 pages
7 pages