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.
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Ernazarov, K.K., Ivashchuk, V.D. Examples of Stable Exponential Cosmological Solutions with Three Factor Spaces in EGB Model with a Λ-Term. Gravit. Cosmol. 25, 164–168 (2019). https://doi.org/10.1134/S0202289319020063
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DOI: https://doi.org/10.1134/S0202289319020063