17 citations · 35 across the 5 of their papers we have counts for
5 papers
Large scale structure constraints and matter power spectrum in gravity
Praveen Kumar Dhankar, Albert Munyeshyaka, Saddam Hussain +1
In the present work, we take into account the dynamical system analysis to investigate the matter power spectrum within the framework of the gravitational th…
On covariant perturbations with scalar field in modified Gauss-Bonnet gravity
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi +1
We investigate cosmological perturbations of f(G) gravity in the presence of a scalar field. Using the 1 + 3 covariant formalism, we present the energy overdensity perturbation equ…
On 1 + 3 covariant perturbations of the quasi-Newtonian space-time in modified Gauss-Bonnet gravity
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi +1
The consideration of a 1 + 3 covariant approach to cold dark matter universe with no shear cosmological dust model with irrotational flows is developed in the context of f (G) grav…
Perturbations in the interacting vacuum
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi +4
In this study, we present the evolution of cosmological perturbations in a universe consisting of standard matter and interacting vacuum. We use the covariant formalism in…
Cosmological perturbations in f(G) gravity
Albert Munyeshyaka, Joseph Ntahompagaze, Tom Mutabazi
We explore cosmological perturbations in a modified Gauss-Bonnet f(G) gravity, using a 1+3 covariant formalism. In such a formalism, we define gradient variables to get perturbed l…