Výsledky vyhledávání - "Obukhov, Valery"

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Exact Solutions in Modified Gravity Models

Autor: Makarenko, Andrey N., Obukhov, Valery V.

Publikováno v: Entropy 2012, 14(7), 1140

We review the exact solutions in modified gravity. It is one of the main problems of mathematical physics for the gravity theory. One can obtain an exact solution if the field equations reduce to a system of ordinary differential equations. In this p

Externí odkaz: http://arxiv.org/abs/1207.0589

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LambdaCDM epoch reconstruction from F(R,G) and modified Gauss-Bonnet gravities

Autor: Elizalde, Emilio, Myrzakulov, Ratbay, Obukhov, Valery V., Sáez-Gómez, Diego

Publikováno v: Class.Quant.Grav.27:095007,2010

Dark energy cosmology is considered in a modified Gauss-Bonnet model of gravity with and without a scalar field. It is shown that these generalizations of General Relativity endow it with a very rich cosmological structure: it may naturally lead to a

Externí odkaz: http://arxiv.org/abs/1001.3636

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Variables separation in gravity

Autor: Obukhov, Valery V., Osetrin, Konstantin E.

Publikováno v: PoS WC2004 (2004) 027

To solve the problem of exact integration of the field equations or equations of motion of matter in curved spacetimes one can use a class of Riemannian metrics for which the simplest equations of motion can be integrated by the complete separation o

Externí odkaz: http://arxiv.org/abs/gr-qc/0502033

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