Bianchi Type-I Universe Models with Nonlinear Viscosity
Nouraddin Mostafapoor, Oyvind Gron
TL;DR
This paper investigates the evolution of Bianchi type-I universe models incorporating nonlinear viscosity and a cosmological constant, analyzing their dynamics and statefinder parameters to understand anisotropic cosmological behaviors.
Contribution
It introduces solutions for Bianchi type-I models with nonlinear viscous fluids and computes their statefinder parameters, extending previous anisotropic universe studies.
Findings
Derived dynamical equations for viscous Bianchi type-I models.
Solved for specific cases demonstrating anisotropic evolution.
Calculated statefinder parameters to characterize model behavior.
Abstract
In this paper we study the evolution of spatially homogeneous and anisotropic Bianchi type-I Universe models with the cosmological constant, \Lambda, and filled with nonlinear viscous fluid. The dynamical equations for these models are obtained and solved for some special cases. We calculate the statefinder parameters for the models and display them in the s-r-plane.
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