Homogeneous and anisotropic cosmologies with affine EoS: a dynamical system perspective
A Singh - The European Physical Journal C, 2023 - Springer
We study a class of homogeneous and anisotropic geometries with affine equation of state
(EoS) for different physically plausible scenarios of the universe evolution using dynamical …
(EoS) for different physically plausible scenarios of the universe evolution using dynamical …
Cosmic dynamics and qualitative study of Rastall model with spatial curvature
We investigate the cosmic dynamics of Rastall gravity in nonflat Friedmann–Robertson–
Walker (FRW) space–time with barotropic fluid. In this context, we are concerned about the …
Walker (FRW) space–time with barotropic fluid. In this context, we are concerned about the …
Qualitative study of Lyra cosmologies with spatial curvature
A Singh - Chinese Journal of Physics, 2022 - Elsevier
We investigate the spatially curved Friedmann–Robertson–Walker space–time with Lyra
geometry model. The cosmological solutions are studied by using dynamical system …
geometry model. The cosmological solutions are studied by using dynamical system …
Aspects of some Rastall cosmologies
A Singh, KC Mishra - The European Physical Journal Plus, 2020 - Springer
Rastall gravity paradigm producing mechanism for realizing singular and non-singular
cosmologies has been investigated. A solution in Rastall gravity with flat spatial sections …
cosmologies has been investigated. A solution in Rastall gravity with flat spatial sections …
Late-time acceleration from ekpyrotic bounce in gravity
In this paper, we investigate the late-time accelerated universe evolution in a flat,
homogeneous and isotropic model in the context of f (Q, T) gravity, where Q and T are non …
homogeneous and isotropic model in the context of f (Q, T) gravity, where Q and T are non …
Qualitative aspects of Kantowski–Sachs cosmologies with cosmological constant and stiff fluid
A Singh - The European Physical Journal Plus, 2023 - Springer
Abstract Homogeneous and anisotropic Kantowski–Sachs model sourced by a stiff fluid and
cosmological constant has been explored for different possible scenarios of the universe …
cosmological constant has been explored for different possible scenarios of the universe …
On the anisotropic bouncing universe with viscosity
We investigate the role of bulk and shear viscosity in the spatially homogeneous anisotropic
spacetime, in particular, the Kantowski–Sachs (KS) spacetime. General conditions for the …
spacetime, in particular, the Kantowski–Sachs (KS) spacetime. General conditions for the …
Qualitative aspects of Rastall gravity with barotropic fluid
We investigate the dynamical evolution of a homogeneous and isotropic flat universe filled
with a barotropic fluid satisfying the linear equation of state in Rastall gravity. Using the …
with a barotropic fluid satisfying the linear equation of state in Rastall gravity. Using the …
Photon production and elliptic flow from a momentum-anisotropic quark-gluon plasma
BS Kasmaei, M Strickland - Physical Review D, 2020 - APS
The emission of real photons from a momentum-anisotropic quark-gluon plasma (QGP) is
affected by both the collective flow of the radiating medium and the modification of the local …
affected by both the collective flow of the radiating medium and the modification of the local …
Cosmic dynamics of isotropic models with inhomogeneous EoS: a dynamical system perspective
We examine the homogeneous and isotropic models sourced by the fluid having an
inhomogenous equation of state (EoS) using qualitative methods. The flat Friedmann …
inhomogenous equation of state (EoS) using qualitative methods. The flat Friedmann …