299 citations · 966 across the 66 of their papers we have counts for
4 papers · 1 filter
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…
Oscillating cosmological correlations in f(R) gravity
Neo Namane, Heba Sami, Amare Abebe
The purpose of this paper is to investigate the oscillatory behavior of the universe through a Schrödinger-like Friedmann equation and a modified gravitational background described…
A Generalized Solution of Bianchi Type-V Models with Time-dependent and
Alnadhief H. A. Alfedeel, Amare Abebe, Hussam M. Gubara
We study the homogeneous but anisotropic Bianchi type-V cosmological model with time-dependent gravitational and cosmological "constants". Exact solutions of the Einstein field equ…
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…