Ivan Dimitrijevic, Branko Dragovich, Jelena Grujic, Zoran Rakic
We consider some aspects of nonlocal modified gravity, where nonlocality is
of the type $R \mathcal{F}(\Box) R$. In particular, using ansatz of the form
$\Box R = c R^\gamma,$ we find a few special cosmological solutions for the
spatially flat FLRW metric. There are singular and nonsingular bounce
solutions. For late cosmic time, scalar curvature R(t) is in low regime and
scale factor a(t) is decelerated.
View original:
http://arxiv.org/abs/1202.2352
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