22-26 October 2018
Hotel Intourist Kolomenskoye 4*
Europe/Moscow timezone

Examples of stable exponential cosmological solutions with three factor spaces in EGB model with a $\Lambda$-term

22 Oct 2018, 15:40
2h 30m
Petrovskiy hall (Hotel Intourist Kolomenskoye 4*)

Petrovskiy hall

Hotel Intourist Kolomenskoye 4*

Kashirskoye shosse, 39B, Moscow, Russia, 115409


Mr. Kubantai Ernazarov


We consider a $D$-dimensional gravitational model with a Gauss-Bonnet term and the cosmological term $\Lambda$. We restrict the metrics to diagonal cosmological ones and find for certain $\Lambda$ a certain examples of solutions with exponential time dependence of three scale factors, governed by three non-coinciding Hubble-like parameters.
We prove the stability of these solutions in a class of cosmological solutions with diagonal metrics.
A solution describing an exponential expansion of $3d$ subspace with Hubble parameter $H$ and small enough variation of the effective gravitational constant $G$ is singled out.

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