In a spatially flat Friedmann-Lemaître-Robertson-Walker universe, we investigate a unified cosmic fluid scenario endowed with bulk viscosity in which the coefficient of the bulk …
The evolution of the bulk viscous matter dominated universe has been analysed using the full causal theory for the evolution of the viscous pressure in the context of the recent …
We consider a cosmological model dominated by bulk viscous matter with a total bulk viscosity coefficient proportional to the velocity and acceleration of the expansion of the …
Here we investigate the cosmic dynamics of Friedmann-Robertson-Walker universes—flat spatial sections—which are driven by nonlinear electrodynamics (NLED) Lagrangians. We …
The theory of dynamical systems is a very complex subject that has produced several surprises in the recent past in connection with the theory of chaos and fractals. The …
We investigate the cosmological dynamics of an up to cubic curvature correction to general relativity (GR) known as cosmological Einsteinian cubic gravity, whose vacuum spectrum …
A bstract We consider a Friedmann model of the universe with bulk viscous matter and radiation as the cosmic components. We study the asymptotic properties in the equivalent …
In this work, we investigate the dynamics of bulk viscous models with decaying vacuum energy density (VED) in a spatially homogeneous and isotropic flat Friedmann-Lemaître …
S Kaur, CP Singh - Communications in Theoretical Physics, 2023 - iopscience.iop.org
We study the effect of bulk viscosity on holographic dark energy (HDE) with Granda– Oliveros infra-red cut-off. We focus on a generalized form of the bulk viscous coefficient …