The problem of Jeans gravitational instability is investigated for static and expanding
universes within the context of the five and thirteen field theories which account for viscous …

A dissipative model of the Universe based on the causal relativistic truncated Israel–Stewart
theory is analysed in the context of recent accelerated expansion of the Universe. The bulk …

It is conjectured that in cosmological applications the particle current is not modified but finite
heat or energy flow. Therefore, comoving Eckart frame is a suitable choice, as it merely …

In this article, we apply the formalism of (classical) Extended Irreversible Thermodynamics
(EIT) to the dynamics of density fluctuations for a self-gravitating fluid in a static Universe …

A flat emergent universe (EU) with a non-linear equation of state (p= A ρ+ f (ρ) p= A ρ+ f (ρ))
is studied considering bulk viscosity. In the paper we obtain cosmological models with …

In this letter, we find the critical mass of a self-gravitating, spherically symmetric gas cloud,
above which the fluid, within the bubble, collapses. Our analysis departs from a non …

We study the dynamics of a bulk viscosity model in the Eckart approach for a spatially flat
Friedmann–Robertson–Walker (FRW) Universe. We have included radiation and dark …

We investigate the dark matter problem in the context of Pseudo-complex General Relativity.
A form of gravitational dark matter has recently been studied, the mimetic dark matter, which …

We perform a global analysis of curved Friedmann–Robertson–Walker cosmologies in the
presence of a viscous fluid. The fluid's bulk viscosity is governed by a first order theory …

A dissipative model of the Universe based on the causal relativistic truncated Israel-Stewart
theory is analysed in the context of recent accelerated expansion of the Universe. The bulk …