Cosmological models with bulk viscosity in presence of adiabatic matter creation and with G, c and Lambda variables

TL;DR

This paper investigates cosmological models with variable bulk viscosity, matter creation, and changing fundamental constants G, c, and Lambda, revealing their inverse proportionality to cosmic time within a flat FRW universe.

Contribution

It introduces solutions for such models using dimensional analysis and explores the inverse relationship of constants with cosmic time.

Findings

Constants G, c, and Lambda decrease inversely with cosmic time.

Solutions derived through dimensional analysis in flat FRW models.

Behavior of models consistent with observational cosmology.

Abstract

Some properties of cosmological models with a time variable bulk viscous coefficient in presence of adiabatic mater creation and G, c, Lambda variables are investigated in the framework of flat FRW line element. We trivially find a set of solutions through Dimensional Analysis. In all the studied cases it is found that the behaviour of these constants is inversely prportional to the cosmic time.