Gustavo Dotti

Static wormhole solution for higher-dimensional gravity in vacuum

A static wormhole solution for gravity in vacuum is found for odd dimensions greater than four. In five dimensions the gravitational theory considered is described by the Einstein-Gauss-Bonnet action where the coupling of the quadratic term is fixed in terms of the cosmological constant. In higher dimensions

Linear stability of Einstein-Gauss-Bonnet static spacetimes : Vector and scalar perturbations

d=2n+1

Gravitational instability of Einstein-Gauss-Bonnet black holes under tensor mode perturbations

, the theory corresponds to a particular case of the Lovelock action containing higher powers of the curvature, so that in general, it can be written as a Chern-Simons form for the AdS group. The wormhole connects two asymptotically locally AdS spacetimes each with a geometry at the boundary locally given by

Gravitational instabilities in Kerr spacetimes

\mathbb{R}\ifmmode\times\else\texttimes\fi{}{S}^{1}\ifmmode\times\else\texttimes\fi{}{H}_{d\ensuremath{-}3}

Gravitational instability of static spherically symmetric Einstein-Gauss-Bonnet black holes in five and six dimensions

. Gravity pulls towards a fixed hypersurface located at some arbitrary proper distance parallel to the neck. The causal structure shows that both asymptotic regions are connected by light signals in a finite time. The Euclidean continuation of the wormhole is smooth independently of the Euclidean time period, and it can be seen as instanton with vanishing Euclidean action. The mass can also be obtained from a surface integral and it is shown to vanish.

The wave equation on the extreme Reissner-Nordstrom black hole

We study the stability under linear perturbations of a class of static solutions of Einstein-Gauss-Bonnet gravity in

Obstructions on the horizon geometry from string theory corrections to Einstein gravity

D=n+2

Static black hole solutions with a self-interacting conformally coupled scalar field

dimensions with spatial slices of the form

Static solutions with nontrivial boundaries for the Einstein-Gauss-Bonnet theory in vacuum

{\ensuremath{\Sigma}}_{\ensuremath{\kappa}}^{n}\ifmmode\times\else\texttimes\fi{}{\mathbb{R}}^{+}

VACUUM SOLUTIONS WITH NONTRIVIAL BOUNDARIES FOR THE EINSTEIN-GAUSS-BONNET THEORY

,