Higher Dimensional Cosmology: Relations among the radii of two homogeneous spaces

Details Higher Dimensional Cosmology: Relations among the radii of two homogeneous spaces Higher Dimensional Cosmology: Relations among the radii of two homogeneous spaces

2010-12-16

arxiv.org/abs/1012.3556v3

Mod.Phys.Lett.A26:805-814,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

13 pages, 3 figures. Two references added, minor typos corrected. To be published in Modern Physics Letters A

Scientific paper

10.1142/S0217732311035316

We study a cosmological model in 1+D+d dimensions where D dimensions are associated with the usual Friedman-Robertson-Walker type metric with radio a(t) and d dimensions corresponds to an additional homogeneous space with radio b(t). We make a general analysis of the field equations and then we obtain solutions involving the two cosmological radii, a(t) and b(t). The particular case D=3, d=1 is studied in some detail.

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