Probing symmetric teleparallel gravity in the early universe

A De, D Saha, G Subramaniam… - Modern Physics Letters …, 2024 - World Scientific
General theory of relativity can be equivalently formulated on a flat spacetime associating a
torsion-free affine connection of non-vanishing non-metricity scalar Q. In this paper, we …

Magnetic Bianchi-I cosmology in the Horndeski theory

RK Muharlyamov, TN Pankratyeva… - Modern Physics Letters …, 2024 - World Scientific
In this paper, we study the evolution of Bianchi-I spacetimes within the framework of the
Horndeski theory with G 5= const./X. The spacetimes are filled a global unidirectional …

Dynamics of a Cosmological Model in f(R,T) Gravity: II. In Three-Dimensional Space

J Liu, R Wang, F Gao - Universe, 2023 - mdpi.com
Based on the results discussed on the invariant planes in the known literature [Universe
2022, 8, 365] for the flat FLRW space-time universe model with ideal fluid under the gravity …

A model-independent compact dynamical system formulation for exploring bounce and cyclic cosmological evolutions in gravity

S Chakraborty, C Louw, A S. Agrawal… - The European Physical …, 2024 - Springer
Using the dynamical systems approach together with the cosmographic parameters, we
present a model-independent dynamical system formulation for cosmology in f (R) gravity …

Anisotropic Solutions for Gravity Model with a Scalar Field

VR Ivanov, SY Vernov - Physics of Atomic Nuclei, 2023 - Springer
We study anisotropic solutions for the pure gravity model with a scalar field in the Bianchi I
metric. The evolution equations have a singularity at zero value of the Ricci scalar for …

[PDF][PDF] Isotropization of the magnetic universe in Horndeski theory with G 3 (X, ϕ) and G 5 (X)

RK Muharlyamov, TN Pankratyeva, SOA Bashir - Chinese Physics C, 2024 - cpc.ihep.ac.cn
Isotropization of the magnetic universe in Horndeski theory with G3(X,ϕ) and G5(X) Page 1
Isotropization of the magnetic universe in Horndeski theory with G3(X,ϕ) and G5(X) Ruslan K …

A model-independent compact dynamical system formulation for exploring bounce and cyclic cosmological evolutions in gravity

AS Agrawal, C Louw, S Chakraborty… - arXiv preprint arXiv …, 2023 - arxiv.org
Using the dynamical systems approach together with the cosmographic parameters, we
present a\emph {model-independent} dynamical system formulation for cosmology in $ f (R) …

Cosmological Solutions of Integrable F(R) Gravity Models with an Additional Scalar Field

S Vernov, V Ivanov - Physical Sciences Forum, 2023 - mdpi.com
We consider F (R) cosmological models with a scalar field. For the R 2 model in the spatially
flat Friedmann–Lemaître–Robertson–Walker metric, the Ricci scalar R can smoothly change …

The nonlinear anisotropic model of the Universe with the linear potential

RK Muharlyamov, TN Pankratyeva - Indian Journal of Physics, 2023 - Springer
In the Bianchi I cosmology some subclasses of the Horndeski theory allow for the non-
standard anisotropy behavior. For example, the anisotropy is damped near the initial …

[引用][C] LRS Bianchi type-I model with polytropic EoS in gravity

PR Agrawal, AP Nile - International …, 2023 - International Journal of Science and …