On modified gravity

Abstract

We consider some aspects of nonlocal modified gravity, where nonlocality is of the type RF. In particular, using Ansatz of the form R = cRγ, 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.