Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/38330
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Título : Reconstruction and deceleration-acceleration transitions in modified gravity
Autor : Nojiri, Shin'ichi, Odintsov, Sergei D., Toporensky, Alexey, Tretyakov, Petr
Palabras clave : Gauss–Bonnet gravity
F(R) gravity
Cosmological singularity
Fecha de publicación : 6-Apr-2010
Editor: Springer
Citación : General Relativity and Gravitation 42 (8) : 1997-2008 (2010)
Resumen: We discuss the cosmological reconstruction in modified Gauss–Bonnet and F(R) gravities. Two alternative representations of the action (with and without auxiliary scalar) are considered. The approximate description of deceleration–acceleration transition cosmologies is reconstructed. It is shown that cosmological solution containing Big Bang and Big Rip singularities may be reconstructed only using the representation with the auxiliary field. The analytical description of the deceleration–acceleration transition cosmology in modified Gauss–Bonnet gravity is demonstrated to be impossible at sufficiently general conditions.
Descripción : The final publication is available at www.springerlink.com
Versión del editor: http://dx.doi.org/10.1007/s10714-010-0977-5
URI : http://hdl.handle.net/10261/38330
ISSN: 0001-7701
DOI: 10.1007/s10714-010-0977-5
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