Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Makarenko, Andrey"'
Publikováno v:
Int.J.Geom.Meth.Mod.Phys. 14 (2017) 1750148
We reconstruct $F(\mathcal{G})$ gravity theory with an exponential scale factor to realize the bouncing behavior in the early universe and examine the asymptotic behaviour of late-time solutions in this model. We propose an approach to the constructi
Externí odkaz:
http://arxiv.org/abs/1708.03592
Autor:
Elizalde, Emilio, Makarenko, Andrey N.
Accelerating dynamics from Born-Infeld-$f(R)$ gravity are studied in a simplified conformal approach without matter. Explicit unification of inflation with late-time acceleration is realized within this singular inflation approach, which is similar t
Externí odkaz:
http://arxiv.org/abs/1606.05211
Publikováno v:
TSPU Bulletin 12 (2014) 158
We consider two types of modifications of Born-Infeld gravity in the Palatini formulation and explore their dynamics in the early universe. One of these families considers $f(R)$ corrections to the Born-Infeld Lagrangian, which can be seen as modific
Externí odkaz:
http://arxiv.org/abs/1411.6193
We explore cosmology with a bounce in Gauss-Bonnet gravity where the Gauss-Bonnet invariant couples to a dynamical scalar field. In particular, the potential and and Gauss-Bonnet coupling function of the scalar field are reconstructed so that the cos
Externí odkaz:
http://arxiv.org/abs/1411.3852
Autor:
Makarenko, Andrey N.
Publikováno v:
Astrophys.Space Sci. 352 (2014) 921-924
We study accelerating dynamics from Born-Infeld-$f(R)$ gravity in a simplified conformal approach without matter. In our work (A.N. Makarenko, S. Odintsov, G.J. Olmo, Phys.Lett. B734 (2014) 36, [arXiv:1403.2850]) it was derived eventually any Dark En
Externí odkaz:
http://arxiv.org/abs/1406.1705
Publikováno v:
Phys.Lett. B734 (2014) 36-40
We study late-time cosmic accelerating dynamics from Born-Infeld-$f(R)$ gravity in a simplified conformal approach. We find that a variety of cosmic efects such as Little Rip, $\Lambda$CDM universe and dark energy cosmology with finite-time future si
Externí odkaz:
http://arxiv.org/abs/1404.2850
Publikováno v:
Phys. Rev. D 90, 024066 (2014)
Motivated by the properties of matter quantum fields in curved space-times, we work out a gravity theory that combines the Born-Infeld gravity Lagrangian with an $f(R)$ piece. To avoid ghost-like instabilities, the theory is formulated within the Pal
Externí odkaz:
http://arxiv.org/abs/1403.7409
Publikováno v:
Physics Letters B 732 (2014) 349-355
We explore bounce cosmology in $F(\mathcal{G})$ gravity with the Gauss-Bonnet invariant $\mathcal{G}$. We reconstruct $F(\mathcal{G})$ gravity theory to realize the bouncing behavior in the early universe and examine the stability conditions for its
Externí odkaz:
http://arxiv.org/abs/1403.3242
Autor:
Bamba, Kazuharu, Makarenko, Andrey N., Myagky, Alexandr N., Nojiri, Shin'ichi, Odintsov, Sergei D.
Publikováno v:
JCAP01(2014)008
We reconstruct $F(R)$ gravity models with exponential and power-law forms of the scale factor in which bounce cosmology can be realized. We explore the stability of the reconstructed models with analyzing the perturbations from the background solutio
Externí odkaz:
http://arxiv.org/abs/1309.3748
Publikováno v:
Astrophys.Space Sci. 349 (2014) 603-609
We study cosmological models derived from higher-order Gauss-Bonnet gravity $F(R,G)$ by using the Lagrange multiplier approach without assuming the presence of additional fields with the exception of standard perfect fluid matter. The presence of Lag
Externí odkaz:
http://arxiv.org/abs/1304.5440