185 citations · 361 across the 22 of their papers we have counts for
4 papers · 2 filters
General solutions for flat Friedmann universe filled by perfect fluid and scalar field with exponential potential
H. Dehnen, V. R. Gavrilov, V. N. Melnikov
We study integrability by quadrature of a spatially flat Friedmann model containing both a minimally coupled scalar field with an exponential potential $V(ϕ)\sim\exp[-\sqrt{6}σ…
On black hole solutions in model with anisotropic fluid
H. Dehnen, V. D. Ivashchuk, V. N. Melnikov
A family of spherically symmetric solutions in the model with 1-component anisotropic fluid is considered. The metric of the solution depends on a parameter q > 0 relating radial p…
Possible time variations of G in scalar-tensor theories of gravity
K. A. Bronnikov, V. N. Melnikov, Mario Novello
We estimate the possible variations of the gravitational constant G in the framework of a generalized (Bergmann-Wagoner-Nordtvedt) scalar-tensor theory of gravity on the basis of t…
Problems of G and multidimensional models
V. N. Melnikov, V. D. Ivashchuk
The relations for G-dot in multidimensional model with Ricci-flat internal space and multicomponent perfect fluid are obtained. A two-component example: dust + 5-brane, is consider…