11 citations · 23 across the 5 of their papers we have counts for
4 papers · 1 filter
Brane-Wor(l)ds within Brans-Dicke Gravity
M. C. B. Abdalla, M. E. X. Guimaraes, J. M. Hoff da Silva
We review some recent results obtained from the application of the Gauss-Codazzi formalism to brane-worlds models in the Brans-Dicke gravity. The cases of 4-branes embedded in a si…
On the Weak-Field Approximation in Generalized Scalar-Tensor Gravities
M. E. X. Guimaraes, L. P. Colatto, F. B. Tourinho
In the paper published in Phys. Lett. A245} (1998) 31, Barros and Romero demonstrated that, in the weak-field approximation, solutions to the Brans-Dicke equations are related to t…
Semiclassical Gravitational Effects in the Spacetime of a Magnetic Flux Cosmic String
M. E. X. Guimaraes
It is well-known that some physical effects may arise in the spacetime of a straigth cosmic string due to its global conic properties. Among these effects, the vacuum polarization…
Cosmic String in Scalar-Tensor Gravity
M. E. X. Guimarães
The gravitational properties of a local cosmic string in the framework of scalar-tensor gravity are examined. We find the metric in the weak-field approximation and we show that, c…