Multidimensional cosmology with anisotropic fluid: acceleration and variation of G

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dc.creatorAlimi, J. -M.
dc.creatorIvashchuk, V. D.
dc.creatorKononogov, S. A.
dc.creatorMelnikov, V. N.
dc.date2006-11-02
dc.date2008-03-09
dc.date.accessioned2026-07-07T10:24:38Z
dc.date.available2026-07-07T10:24:38Z
dc.descriptionA multidimensional cosmological model describing the dynamics of n+1 Ricci-flat factor-spaces M_i in the presence of a one-component anisotropic fluid is considered. The pressures in all spaces are proportional to the density: p_i = w_i ρ, i = 0,...,n. Solutions with accelerated expansion of our 3-space M_0 and small enough variation of the gravitational constant G are found. These solutions exist for two branches of the parameter w_0. The first branch describes superstiff matter with w_0 > 1, the second one may contain phantom matter with w_0 < - 1, e.g., when G grows with time.
dc.description6 pages, Latex, corrected typos, Proceedings of the International Conference on Gravitation, Cosmology, Astrophysics and Nonstationary Gas Dynamics, Dedicated to Prof. K.P. Staniukovich's 90th birthday, Moscow, 2-6 March 2006
dc.identifierhttps://arxiv.org/abs/gr-qc/0611015
dc.identifierhttp://arxiv.org/abs/gr-qc/0611015
dc.identifierGrav.Cosmol.12:173-178,2006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/176259
dc.subjectGeneral Relativity and Quantum Cosmology
dc.subjectHigh Energy Physics - Theory
dc.titleMultidimensional cosmology with anisotropic fluid: acceleration and variation of G
dc.typetext

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