274 citations · 2k across the 60 of their papers we have counts for
5 papers · 1 filter
Cosmological dynamics of non-minimally coupled scalar field system and its late time cosmic relevance
M. Sami, M. Shahalam, M. Skugoreva +1
We investigate the cosmological dynamics of non-minimally coupled scalar field system described by coupling with () and the field potential, $V(ϕ)=V_…
Reconstruction and deceleration-acceleration transitions in modified gravity
Shin'ichi Nojiri, Sergei D. Odintsov, Alexey Toporensky +1
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 consid…
A Note on the Viability of Gauss-Bonnet Cosmology
R. Chingangbam, M. Sami, P. V. Tretyakov +1
In this paper, we analyze the viability of a vacuum Gauss-Bonnet cosmology by examining the dynamics of the homogeneous and anisotropic background in 4+1 dimensions. The trajectori…
The fate of (phantom) dark energy universe with string curvature corrections
M. Sami, Alexey Toporensky, Peter V. Tretjakov +1
We study the evolution of (phantom) dark energy universe by taking into account the higher-order string corrections to Einstein-Hilbert action with a fixed dilaton. While the prese…
Aspects of Scalar Field Dynamics in Gauss-Bonnet Brane Worlds
M. Sami, N. Savchenko, A. Toporensky
The Einstein-Gauss-Bonnet equations projected from the bulk to brane lead to a complicated Friedmann equation which simplifies to in the asymptotic regimes. The Rand…