Homogeneous cosmologies in generalized modified gravity
arXiv:0802.3967 · doi:10.1007/s10773-008-9754-6
Abstract
Dynamical system methods are used in the study of the stability of spatially flat homogeneous cosmologies within a large class of generalized modified gravity models in the presence of a relativistic matter-radiation fluid. The present approach can be considered as the generalization of previous works in which only $F(R)$ cases were considered. Models described by an arbitrary function of all possible geometric invariants are investigated and general equations giving all critical points are derived.
13 pages, no figures