Gauss-Bonnet Braneworld Cosmology with Modified Induced Gravity on the Brane

TL;DR

This paper explores a modified braneworld cosmology incorporating Gauss-Bonnet and $f(R)$ gravity terms, analyzing its impact on late-time cosmic evolution and constraining model parameters with observational data.

Contribution

It introduces a novel combination of Gauss-Bonnet and $f(R)$ gravity in braneworld cosmology and studies its dynamical behavior and observational constraints.

Findings

Curvature effects significantly influence late-time cosmic dynamics.

Model parameters can be constrained using recent observational data.

The extended model provides a viable alternative to standard cosmology.

Abstract

We analyze the background cosmology for an extension of the DGP gravity with Gauss-Bonnet term in the bulk and $f(R)$ gravity on the brane. We investigate implications of this setup on the late-time cosmic history. Within a dynamical system approach, we study cosmological dynamics of this setup focusing on the role played by curvature effects. Finally we constraint the parameters of the model by confrontation with recent observational data.