De Sitter and power-law solutions in non-local Gauss–Bonnet gravity
De Sitter and power-law solutions in non-local Gauss–Bonnet gravity
The cosmological dynamics of a non-locally corrected gravity theory, involving a power of the inverse d'Alembertian, is investigated. Casting the dynamical equations into local form, the fixed points of the models are derived, as well as corresponding de Sitter and power-law solutions. Necessary and sufficient conditions on the model parameters …