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Classical and quantum solutions in Brans-Dicke cosmology with a perfect fluid
(American Physical SocietyPhysical Review D, 2016)
We consider the application of group invariant transformations in order to constrain a flat isotropic and homogeneous cosmological model, containing of a Brans-Dicke scalar field and a perfect fluid with a constant equation ...
Dynamical analysis in scalar field cosmology
(APSPhysical Review D, 2015-06-23)
We give a general method to find exact cosmological solutions for scalar-field dark energy in the presence of perfect fluids. We use the existence of invariant transformations for the Wheeler De Witt (WdW) equation. We ...