General scalar–tensor cosmology: analytical solutions via noether symmetry
General scalar–tensor cosmology: analytical solutions via noether symmetry
We analyze the cosmology of a general scalar–tensor theory which encompasses generalized Brans–Dicke theory, Gauss–Bonnet gravity, non-minimal derivative gravity, generalized Galilean gravity and also the general k-essence type models. Instead of taking into account phenomenological considerations we adopt a Noether symmetry approach, as a physical criterion, to single out the …