124 citations · 234 across the 6 of their papers we have counts for
6 papers
Quest for Localized 4-D Black Holes in Brane Worlds. II : Removing the bulk singularities
P. Kanti, I. Olasagasti, K. Tamvakis
We analyze further the possibility of obtaining localized black hole solutions in the framework of Randall-Sundrum-type brane-world models. We consider black hole line-elements ana…
Gravity in higher codimension de Sitter Brane Worlds
I. Olasagasti, K. Tamvakis
We study solutions of Einstein's equations corresponding codimension n>2 global topological defects with de Sitter slices. We analyze a class of solutions that are cylindrically sy…
Schwarzschild Black Branes and Strings in higher-dimensional Brane Worlds
P. Kanti, I. Olasagasti, K. Tamvakis
We consider branes embedded in spacetimes of codimension one and two, with a warped metric tensor for the subspace parallel to the brane. We study a variety of brane-world solution…
Gravitating global defects: the gravitational field and compactification
Itsaso Olasagasti
We give a prescription to add the gravitational field of a global topological defect to a solution of Einstein's equations in an arbitrary number of dimensions. We only demand that…
Gravity of higher-dimensional global defects
Itsaso Olasagasti, Alexander Vilenkin
Solutions of Einstein's equations are found for global defects in a higher-dimensional spacetime with a nonzero cosmological constant Lambda. The defect has a (p-1)-dimensional cor…
Asymptotic behaviour of a class of inhomogeneous scalar field cosmologies
J. Ibáñez, I. Olasagasti
The asymptotic behaviour of a class of inhomogeneous scalar field cosmologies with a Liouville type of potential is studied. We define a set of new variables for which the phase sp…