Bianchi spaces

In this paper, we would like to combine these two extensions in a single scenario, in which the canonical scalar field is replaced by the non-canonical one firstly proposed in the so-called k-inflation model.

15p vispiderman 15-06-2023 4 2   Download

The study of the nature of scalar fields without mass parameter interacting with stiff perfect fluid in Bianchi type space- times is a subject of interest due to its significant role in the description of the universe at the early stages of evolution. Patel [1] obtained the static and non-static plane symmetric solutions of the field equations in presence of zeromass scalar field. Singh and Deo [2] considered Robertson Walker metric and investigated the problem of zero-mass scalar field interactions in the presence of gravitational field with and without the source term in the wave equation.

7p 12120609 01-06-2020 9 0   Download

In particular, we will show that the studied models really admit the Bianchi type I metrics, which are homogeneous but anisotropic space time, as their stable cosmological solutions. Hence, these models turn out to be counterexamples to the cosmic no-hair conjecture.

12p viposeidon2711 17-09-2019 15 0   Download