The evolution of the universe in a modified gravity theory that includes the terms Ricci scalar (RR) and the Gauss‐Bonnet invariant (GG) is studied. The function f (R, G) f(R,G) is obtained …
In this paper, an attempt is made to construct a Friedmann–Lemaitre–Robertson–Walker model in f (R, T) gravity with a perfect fluid that yields acceleration at late times. We take f (R …
JK Singh, A Singh, SG Ghosh, SD Maharaj - Physica Scripta, 2024 - iopscience.iop.org
We investigate the Universe's evolution within the framework of Rastall gravity, which is an extension of the standard ΛCDM model. Utilizing a linear parametrization of the Equation of …
JK Singh, A Singh, J Jena - Chinese Journal of Physics, 2023 - Elsevier
The homogeneous and isotropic cosmological model in generalized f (R, T ϕ) theories associated with the scalar field is discussed, which is motivated by the f (R, T) theory of …
In this study, we present an approach f (R, G) gravity incorporating power law in G. To study the cosmic evolution of the universe given by the reconstruction of the Hubble parameter …
MA García Aspeitia, A Esteban-Gutiérrez… - Available at SSRN … - papers.ssrn.com
We present a new model based on GR in where a subtle change of curvature is able to produce the observed Universe acceleration and an oscillating behavior in the effective …