58 citations · 80 across the 6 of their papers we have counts for
5 papers · 1 filter
Quasi-Rip universe induced by the fluid with inhomogeneous equation of state
I. Brevik, V. Obukhov, A. Timoshkin
We investigate a specific model for dark energy, which lead to the Quasi-Rip cosmology. In the Quasi-Rip model, the equation of the state parameter is less than -1 in the first…
Little Rip cosmological models with time-dependent equation of state
I. Brevik, V. V. Obukhov, K. E. Osetrin +1
Specific dark energy models, leading to the Little Rip (LR) cosmology in the far future, are investigated. Conditions for the occurrence of LR in terms of the parameters present in…
Conformally-flat Stackel spaces in Brans-Dicke theory
V. V. Obukhov, K. E. Osetrin, A. E. Filippov +1
The classification problem for conformally-flat space-times that admit a separation of variables in the Hamilton-Jacobi equation of the scalar-tensor Brans-Dicke theory of gravity…
Variables separation in gravity
Valery V. Obukhov, Konstantin E. Osetrin
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 simpl…
Kantowski-Sachs Brane Cosmology
A. N. Makarenko, V. V. Obukhov, K. E. Osetrin
We consider brane Kantowski-Sachs Universe when bulk space is five-dimensional Anti-deSitter space. The corresponding cosmological equations with perfect fluid are written. For sev…