5 papers
Noncoincidence -Cosmology with Dark Matter Coupled to Gravity
A. Abebe, P. S. Apostolopoulos, A. Giacomini +3
We investigate FLRW cosmology in the framework of symmetric teleparallel gravity with a nonminimal coupling between dark matter and the gravitational field. In the noncoinci…
Relativistic stars in -gravity: Exact analytic solution for the power-law case
Nikolaos Dimakis, Alex Giacomini, Andronikos Paliathanasis +1
We investigate static spherically symmetric spacetimes within the framework of symmetric teleparallel gravity in order to describe relativistic stars. We adopt a specific an…
Bianchi I spacetimes within 4D Einstein-Gauss-Bonnet scalar field theory
Alex Giacomini, Chevara Hansraj, Genly Leon +1
We investigate the evolution of anisotropies in Bianchi I spacetimes within the framework of the 4D Einstein-Gauss-Bonnet scalar field theory. The field equations are formulated us…
-cosmological dynamics in the FLRW background
Nikolaos Dimakis, Alex Giacomini, Genly Leon +3
We examine the cosmological dynamics of Einstein-Gauss-Bonnet gravity models in a four-dimensional spatially flat FLRW metric. These models are described by $f\left( R,\mathcal{G}\…
Anisotropic Spacetimes in -gravity: Bianchi I, Bianchi III and Kantowski-Sachs Cosmologies
R. Bogadi, A. Giacomini, M. Govender +3
We investigate the evolution of cosmological anisotropies within the framework of -gravity. Specifically, we consider a locally rotationally symmetric geometry in…