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gr-qc2018★ 3 cited
Inflation constraints for classes of f(R) models
Joseph Ntahompagaze, Jean Damascene Mbarubukeye, Shambel Sahlu +1
In this paper, we explore the equivalence between two theories, namely f(R) and scalar-tensor theories of gravity. We use this equivalence to explore several f(R) toy models focusi…
gr-qc2018★ 16 cited
A study of perturbations in scalar-tensor theory using 1+3 covariant approach
Joseph Ntahompagaze, Amare Abebe, Manasse R. Mbonye
This work discusses scalar-tensor theories of gravity, with a focus on the Brans-Dicke subclass, and one that also takes note of the latter's equivalence with gravitation th…