Examples of stable exponential cosmological solutions with three factor spaces in EGB model with a $\Lambda$-term
General Relativity and Quantum Cosmology
2019-06-19 v2
Abstract
We deal with Einstein-Gauss-Bonnet model in dimension with a -term. We obtain three stable cosmological solutions with exponential behavior (in time) of three scale factors corresponding to subspaces of dimensions and , respectively. Any solution may describe an exponential expansion of -dimensional subspace governed by Hubble parameter . Two of them may also describe a small enough variation of the effective gravitational constant (in Jordan frame) for certain values of .
Cite
@article{arxiv.1812.11855,
title = {Examples of stable exponential cosmological solutions with three factor spaces in EGB model with a $\Lambda$-term},
author = {K. K. Ernazarov and V. D. Ivashchuk},
journal= {arXiv preprint arXiv:1812.11855},
year = {2019}
}
Comments
9 pages, Latex, certain editing of the text (mainly in Abstract, Introduction and Conclusions) is done; few phrases and words are deleted; one reference is added