Causes of irregular energy density in gravity

Z Yousaf, K Bamba, MZH Bhatti - Physical Review D, 2016 - APS
We investigate irregularity factors for a self-gravitating spherical star evolving in the
presence of an imperfect fluid. We explore the gravitational field equations and the …

Cosmological and solar system consequences of gravity models

H Shabani, M Farhoudi - Physical Review D, 2014 - APS
To find more deliberate f (R, T) cosmological solutions, we take our previous paper further by
studying some new aspects of the considered models via investigation of some new …

Cosmological solutions from induced matter model applied to 5D gravity and the shrinking of the extra coordinate

PHRS Moraes - The European Physical Journal C, 2015 - Springer
In this work, I present exact cosmological solutions from Wesson's induced matter model
applied to a general 5D metric in f (R, T) f (R, T) theory of gravity. The non-conservation of …

Stability of the Einstein static universe in f(RT) gravity

H Shabani, AH Ziaie - The European Physical Journal C, 2017 - Springer
The Einstein static (ES) universe has played a major role in various emergent scenarios
recently proposed in order to cure the problem of the initial singularity of the standard model …

Dark energy nature of viscus universe in -gravity with observational constraints

A Pradhan, DC Maurya, A Dixit - International Journal of Geometric …, 2021 - World Scientific
In this study, we have investigated the dark energy behavior of the viscus-fluid in f (Q)-gravity
in a flat, isotropic and homogeneous Friedmann–Lemaitre–Robertson–Walker (FLRW) …

Effects of non-minimally coupled f(R, T) gravity on the stability of a self-gravitating spherically symmetric fluid

MZ Bhatti, Z Yousaf, M Yousaf - International Journal of Geometric …, 2022 - World Scientific
This paper is focused on the in/stability of a collapsing anisotropic self-gravitating spherically
symmetric compact fluid under the influence of non-minimally coupled f (R, T) gravitational …

Cosmology from induced matter model applied to 5D f(R,T) theory

P Moraes - Astrophysics and Space Science, 2014 - Springer
It is well known that the universe is undergoing a phase of accelerated expansion. Plenty of
models have already been created with the purpose of describing what causes this non …

Dynamical analysis of charged fluid under nonminimally coupled gravity theory

MZ Bhatti, Z Yousaf, M Yousaf… - International Journal of …, 2022 - World Scientific
This paper deals with stability analysis of anisotropic-charged cylindrical geometry coupled
with f (R, T) modified gravity theory (ℳ 𝒢 𝒯). In this ℳ 𝒢 𝒯, the Lagrangian is a varying …

Stability analysis of restricted non-static axial geometry in f (R, T) gravity

MZ Bhatti, Z Yousaf, M Yousaf - Chinese Journal of Physics, 2022 - Elsevier
The goal of this article is to investigate instability constraints under the influence of f (R, T)
gravity in which the Lagrangian is taken as a varying function of Ricci scalar invariant (R) …

The models of transit cosmology along with observational constriction in gravity

A Pradhan, A Dixit - International Journal of Geometric Methods in …, 2021 - World Scientific
Xu et al.(Eur. Phys. J. C 79 (2019) 708) have anticipated the theory of Gravity. The modified
study of f (Q, T) is elucidated here as Cosmological model. In it the action holds a role as a …