%0 Journal Article
%T Accelerating cosmologies from non-local higher-derivative gravity
%A Salvatore Capozziello
%A Emilio Elizalde
%A Shin'ichi Nojiri
%A Sergei D. Odintsov
%J Physics
%D 2008
%I arXiv
%R 10.1016/j.physletb.2008.11.060
%X We study accelerating cosmological solutions of a general class of non-linear gravities which depend on Gauss-Bonnet and other higher derivative invariants. To achieve this goal a local formulation with auxiliary scalars for arbitrary higher-derivative non-local gravity is developed. It is demonstrated that non-local Gauss-Bonnet gravity can be reduced, in the local formulation, to a model of string-inspired scalar-Gauss-Bonnet gravity. A natural unification, in the theory here developed, of the early-time inflation epoch with a late-time acceleration stage can also be realized.
%U http://arxiv.org/abs/0809.1535v2