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

Source: [Examples of stable exponential cosmological solutions with three factor spaces in EGB model with a $\\Lambda$-term](<https://www.sota2.com/research/paper/68fa39e41e209131ce8c654c>)

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

Data updated: 2025-10-24T23:45:31.844Z

Authors: K. K. Ernazarov, V. D. Ivashchuk

Published: 2018-12-26T22:06:47.000Z

## Abstract

We deal with Einstein-Gauss-Bonnet model in dimension $D$ with a $\\Lambda$-term. We obtain three stable cosmological solutions with exponential behavior (in time) of three scale factors corresponding to subspaces of dimensions $(l\_0,l\_1,l\_2) = (3, 4, 4), (3, 3, 2), (3, 4, 3)$ and $D = 12, 9, 11$, respectively. Any solution may describe an exponential expansion of $3$-dimensional subspace governed by Hubble parameter $H$. Two of them may also describe a small enough variation of the effective gravitational constant $G$ (in Jordan frame) for certain values of $\\Lambda$.

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## Original sources and implementation

[Original paper](<https://arxiv.org/abs/1812.11855>)

[PDF](<https://arxiv.org/pdf/1812.11855.pdf>)