Reconstruction and deceleration-acceleration transitions in modified gravity - INSPIRE

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Reconstruction and deceleration-acceleration transitions in modified gravity

Shin'ichi Nojiri
(
- Nagoya U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC and
- ICE, Bellaterra
)
,
Alexey Toporensky
(
- Sternberg Astron. Inst.
)
,
Petr Tretyakov
(
- Dubna, JINR
)

2010

8 pages

Published in:

Gen.Rel.Grav. 42 (2010) 1997-2008

e-Print:

0912.2488 [hep-th]

DOI:

10.1007/s10714-010-0977-5

View in:

reference search98 citations

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Abstract: (arXiv)

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.

Note:

LaTeX 8 pages, published version.

04.50.Kd
95.36.+x
98.80.Cq
11.25.-w
11.10.Kk
Gauss-Bonnet gravity
F(R) gravity
Cosmological singularity
gravitation: action
Gauss-Bonnet term

References(37)

Figures(0)

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)

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Shin'ichi Nojiri
(
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Sergei D. Odintsov
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Shin'ichi Nojiri
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)
,
Sergei Odintsov
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,
Sergio Zerbini
(
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)

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(
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Cosmological Constraints on $f(G)$ Dark Energy Models

Shuang-Yong Zhou
(
- Nottingham U.
)
,
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(
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)
,
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)

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(
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,
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(
- Mazandaran U., Babolsar
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,
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,
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Kazuharu Bamba
(
- Taiwan, Natl. Tsing Hua U.
)
,
Chao-Qiang Geng
(
- Taiwan, Natl. Tsing Hua U.
)
,
Shin'ichi Nojiri
(
- Nagoya U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC
)

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Guido Cognola
(
- Trento U. and
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)
,
Monica Gastaldi
(
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)
,
Sergio Zerbini
(
- Trento U. and
- INFN, Trento
)

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Shin'ichi Nojiri
(
- Nagoya U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC
)
,
Petr V. Tretyakov
(
- Sternberg Astron. Inst.
)

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Kazuharu Bamba
(
- Taiwan, Natl. Tsing Hua U.
)
,
Sergei D. Odintsov
(
- ICREA, Barcelona and
- Barcelona, IEEC and
- ICE, Bellaterra
)
,
Lorenzo Sebastiani
(
- Trento U. and
- INFN, Trento
)
,
Sergio Zerbini
(
- Trento U. and
- INFN, Trento
)

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•
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