300 citations · 2.6k across the 72 of their papers we have counts for
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A new framework for studying spherically symmetric static solutions in f(R) gravity
Anne Marie Nzioki, Sante Carloni, Rituparno Goswami +1
We develop a new covariant formalism to treat spherically symmetric spacetimes in metric} f(R) theories of gravity. Using this formalism we derive the general equations for a stati…
Power-law cosmic expansion in f(R) gravity models
Naureen Goheer, Julien Larena, Peter K. S. Dunsby
We show that within the class of f(R) gravity theories, FLRW power-law perfect fluid solutions only exist for R^n gravity. This significantly restricts the set of exact cosmologica…
Cosmological dynamics of fourth order gravity
S Carloni, P K S Dunsby, A Troisi
We discuss the dynamical system approach applied to Higher Order Theories of Gravity. We show that once the theory of gravity has been specified, the cosmological equations can be…
On the co-existence of matter dominated and accelerating solutions in f(G)-gravity
Naureen Goheer, Rituparno Goswami, Peter K. S. Dunsby +1
Working within the theory of modified Gauss-Bonnet gravity, we show that FLRW--like power--law solutions only exist for a very special class of f(G)theories. Furthermore, we point…