Isotropization of locally rotationally symmetric Bianchi-I universe in f(Q)-gravity

A De, S Mandal, JT Beh, TH Loo, PK Sahoo - The European Physical …, 2022 - Springer
Despite having the somewhat successful description of accelerated cosmology, the early
evolution of the universe always challenges mankind. Our promising approach lies in a new …

An anisotropic version of Tolman VII solution in f(RT) gravity via gravitational decoupling MGD approach

H Azmat, M Zubair - The European Physical Journal Plus, 2021 - Springer
In this work, we have adopted gravitational decoupling by minimal geometric deformation
(MGD) approach and have developed an anisotropic version of well-known Tolman VII …

Stability analysis of anisotropic Bianchi type-I cosmological model in teleparallel gravity

M Koussour, M Bennai - Classical and Quantum Gravity, 2022 - iopscience.iop.org
In this work, we study a cosmological model of Bianchi type-I Universe in teleparallel gravity
for a perfect fluid. To obtain the cosmological solution of the model, we assume that the …

Constraints on anisotropic properties of the universe in f (Q, T) gravity theory

A Zhadyranova, M Koussour, V Zhumabekova… - Journal of High Energy …, 2024 - Elsevier
Motivated by anomalies in cosmic microwave background observations, we investigate the
implications of f (Q, T) gravity in Bianchi type-I spacetime, aiming to characterize the …

On a Bianchi type-I space-time with bulk viscosity in gravity

M Koussour, M Bennai - … Journal of Geometric Methods in Modern …, 2022 - World Scientific
In this paper, we present a spatially homogeneous and anisotropic Bianchi type-I
cosmological model with a viscous bulk fluid in f (R, T) gravity where R and T are the Ricci …

A periodic varying deceleration parameter in f(R, T) gravity

PK Sahoo, SK Tripathy, P Sahoo - Modern Physics Letters A, 2018 - World Scientific
The phenomenon of accelerated expansion of the present universe and a cosmic transit
aspect is explored in the framework of a modified gravity theory known as f (R, T) gravity …

Quadratically varying deceleration parameter in gravity

RK Tiwari, D Sofuoğlu - … Journal of Geometric Methods in Modern …, 2020 - World Scientific
In this paper, we have proposed a new form for the varying deceleration parameter that is a
generalization of the form of Ö. Akarsu and T. Dereli [Cosmological models with linearly …

Cosmological models with cubically varying deceleration parameter in f(RT) gravity

M Koussour, M Bennai - Afrika Matematika, 2022 - Springer
In this work, we have studied the spatially homogeneous anisotropic Bianchi type-I Universe
in f (R, T) gravity (where R is the Ricci scalar and T is the trace of the energy-impulsion …

LRS Bianchi type-I cosmological models with periodic time varying deceleration parameter in gravity

A Pradhan, A Dixit, G Varshney - International Journal of Modern …, 2022 - World Scientific
In this research, we examine a spatially homogeneous anisotropic locally rotationally
symmetric (LRS) Bianchi type-I cosmological model in f (R, T) gravity, for some choices of …

Variable Chaplygin gas cosmologies in f (R, T) gravity with particle creation

N Hulke, GP Singh, BK Bishi, A Singh - New Astronomy, 2020 - Elsevier
Abstract A flat FLRW (Friedmann–Lemaitre–Robertson–Walker) cosmological model with
perfect fluid comprising of variable Chaplygin gas (VCG) has been studied in the context of f …