# Examples of exact exponential cosmological solutions with three isotropic subspaces in the Einstein-Gauss-Bonnet gravity

Source: [Examples of exact exponential cosmological solutions with three isotropic subspaces in the Einstein-Gauss-Bonnet gravity](<https://www.sota2.com/research/paper/68fa43201e209131ce907865>)

Collection index: [llms.txt](<https://www.sota2.com/research/llms.txt>)

Data updated: 2025-10-25T04:08:08.558Z

Authors: K.K. Ernazarov

Published: 2022-06-14T16:33:43.000Z

## Abstract

We consider $(1+ 8)$- and $(1+10)$-dimensional Einstein-Gauss-Bonnet models with the cosmological $\\Lambda$-term. Some new examples of exact solutions with three constant Hubble-like parameters in this model are obtained, governed by three non-coinciding Hubble-like parameters: $H \\neq 0$, $h\_1$ and $h\_2$, obeying $m H + k\_1 h\_1 + k\_2 h\_2 \\neq 0$, corresponding to factor spaces of dimensions $m\\geqslant 3$, $ k\_1 \> 1$ and $ k\_2\\geqslant 1$. In this case, the multidimensional cosmological model deals with three factor spaces: the external 3-dimensional "our" world and internal subspaces with dimensions $ (m-3)$, $k\_1$ and $k\_2$.

## Recorded benchmark results

A research result applies to its stated dataset, split, metric and evaluation configuration. Compare like-for-like settings, preserve the metric's unit and direction, and distinguish paper-reported results from independent reproduction. The best result recorded here is not a claim of exhaustive, current global coverage.

## Original sources and implementation

[Original paper](<https://arxiv.org/abs/2206.06963>)

[PDF](<https://arxiv.org/pdf/2206.06963.pdf>)