Speaker
Mr.
Kubantai Ernazarov
Description
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.
Primary authors
Dr.
Vladimir Ivashchuk
Mr.
Kubantai Ernazarov