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Inflationary solutions and inhomogeneous Kaluza-Klein cosmology in 4+n dimensions

Santiago E. Perez Bergliaffa
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Abstract

We analyze the existence of inflationary solutions in an inhomogeneous Kaluza-Klein cosmological model in 4+n dimensions. It is shown that the 5-dimensional case is the exception rather than the rule, in the sense that the system is integrable (under the assumption of the equation of state $ρ= kp$) for any value of k. It is also shown that the cases k=0 and k=1/3 are integrable if and only if n=1.

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Santiago E. Perez Bergliaffa. 1997-01-25. Inflationary solutions and inhomogeneous Kaluza-Klein cosmology in 4+n dimensions. https://arxiv.org/abs/gr-qc/9701055

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