Linear expansion models vs. standard cosmologies: a critical and historical overview

J Casado - Astrophysics and Space Science, 2020 - Springer
Numerous linear expansion cosmological models are critically revised and compared with
standard cosmologies from a historical perspective. There are two major classes of such …

ED-SHO: A framework for solving nonlinear economic load power dispatch problem using spotted hyena optimizer

G Dhiman, S Guo, S Kaur - Modern Physics Letters A, 2018 - World Scientific
This paper presents the application of recently developed metaheuristic optimization
algorithm, the spotted hyena optimizer, for solving both convex and non-convex economic …

Modified f(R,T) gravity theory and scalar field cosmology

V Singh, CP Singh - Astrophysics and Space Science, 2015 - Springer
In this paper, we explore the behaviors of scalar field in modified f (R, T) gravity theory within
the framework of a flat Friedmann-Robertson-Walker cosmological model. The universe is …

Constraints on cosmological parameters in power-law cosmology

S Rani, A Altaibayeva, M Shahalam… - … of Cosmology and …, 2015 - iopscience.iop.org
In this paper, we examine observational constraints on the power law cosmology; essentially
dependent on two parameters H 0 (Hubble constant) and q (deceleration parameter). We …

Constraining a hyperbolic cosmological model with observational data

M Koussour, S Bekov, A Altaibayeva… - Chinese Journal of …, 2024 - Elsevier
In this study, we investigate the dynamic evolution of the universe through a hyperbolic
cosmological model based on a spatially flat FLRW metric. By using observational datasets …

Non-minimal derivative coupling gravity in cosmology

B Gumjudpai, P Rangdee - General Relativity and Gravitation, 2015 - Springer
We give a brief review of the non-minimal derivative coupling (NMDC) scalar field theory in
which there is non-minimal coupling between the scalar field derivative term and the …

Estimating power-law exponents from observations in electromagnetic non-minimal Maxwell-Gauss-Bonnet coupling cosmology

RA El-Nabulsi, W Anukool - Journal of High Energy Astrophysics, 2024 - Elsevier
We discuss a generalized non-minimal Maxwell-Gauss-Bonnet power-law cosmological
model characterized by the presence of electromagnetic field and variable cosmological and …

Scalar Field Cosmology in f(R,T) Gravity with Λ

S Aygün, C Aktaş, PK Sahoo, BK Bishi - Gravitation and Cosmology, 2018 - Springer
We study the behavior of cosmological parameters, massive and massless scalar fields
(normal or phantom) with a scalar potential in f (R, T) theory of gravity for a flat Friedmann …

Tilted congruence with conformally flat universe in f(R, T) theory of gravity

VJ Dagwal - Indian Journal of Physics, 2022 - Springer
This study presents physical behavior of the tilted congruence with conformally flat universe
in f (R, T) theory of gravity. To determine the solution of the field equations, the stiff fluid and …

Relationship between magnetic field and anisotropy parameter in gravitation theories

C Aktaş, S Aygün, PK Sahoo - Modern Physics Letters A, 2018 - World Scientific
The magnetized strange quark matter (MSQM) solutions are obtained for a Marder type
universe using constant deceleration parameter. The exact solutions of field equations are …