Inhomogeneous viscous dark fluid coupled with dark matter in the FRW universe

TL;DR

This paper investigates a cosmological model where an inhomogeneous viscous dark fluid interacts with dark matter, analyzing its impact on cosmic acceleration and singularities in a flat FRW universe.

Contribution

It introduces a detailed analysis of a coupled dark fluid-dark matter model with explicit critical points and explores its effects on cosmic acceleration and singularities.

Findings

Dark matter influences the behavior of viscous dark fluid.

The model exhibits different types of singularities.

Critical points of the system are explicitly obtained.

Abstract

A cosmological model with an inhomogeneous viscous dark fluid coupled with dark matter in a flat Friedman-Robertson-Walker universe is investigated. The influence of dark matter on the behavior of an inhomogeneous viscous fluid of this kind, responsible for cosmic acceleration and for the appearance of different types of singularities, is analyzed in detail. In particular, the critical points corresponding to the solutions of the background equations in a useful approximation are obtained explicitly.