Email this article Examples of Stable Exponential Cosmological Solutions with Three Factor Spaces in EGB Model with a Λ-Term
- Authors: Ernazarov K.K.1, Ivashchuk V.D.1,2
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Affiliations:
- Peoples’ Friendship University of Russia (RUDN University)
- Center for Gravitation and Fundamental Metrology
- Issue: Vol 25, No 2 (2019)
- Pages: 164-168
- Section: Article
- URL: https://journals.rcsi.science/0202-2893/article/view/176312
- DOI: https://doi.org/10.1134/S0202289319020063
- ID: 176312
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Abstract
We deal with the Einstein-Gauss-Bonnet model in dimension D with a cosmological constant. We obtain three stable cosmological solutions with exponential behavior (in time) of three scale factors, corresponding to subspaces of dimensions (l0l1l2 = 3, 4, 4), (3, 3, 2), (3, 4, 3) and D = 12, 9, 11, respectively. Any of the solutions may describe an exponential expansion of 3D subspace governed by the Hubble parameter H. Two of them may also describe a small enough variation of the effective gravitational constant G (in Jordan’s frame) for certain values of Λ.
About the authors
K. K. Ernazarov
Peoples’ Friendship University of Russia (RUDN University)
Author for correspondence.
Email: kubantai80@mail.ru
Russian Federation, Moscow, 117198
V. D. Ivashchuk
Peoples’ Friendship University of Russia (RUDN University); Center for Gravitation and Fundamental Metrology
Email: kubantai80@mail.ru
Russian Federation, Moscow, 117198; Moscow, 119361
