Perturbations of black holes, initially considered in the context of possible observations of
astrophysical effects, have been studied for the past 10 years in string theory, brane-world …

Quasinormal modes are eigenmodes of dissipative systems. Perturbations of classical
gravitational backgrounds involving black holes or branes naturally lead to quasinormal …

Geodesic motion determines important features of spacetimes. Null unstable geodesics are
closely related to the appearance of compact objects to external observers and have been …

We establish the full global non-linear stability of the Kerr–de Sitter family of black holes, as
solutions of the initial value problem for the Einstein vacuum equations with positive …

We review black-hole solutions of higher-dimensional vacuum gravity and higher-
dimensional supergravity theories. The discussion of vacuum gravity is pedagogical, with …

We derive the quadratic action for the physical degrees of freedom of massless spin-0, spin-
1, and spin-2 perturbations on a Schwarzschild-(A) dS background in arbitrary dimensions …

The wide applications of higher dimensional gravity and gauge/gravity duality have fuelled
the search for new stationary solutions of the Einstein equation (possibly coupled to matter) …

We show that in four or more spacetime dimensions, the Einstein equations for gravitational
perturbations of maximally symmetric vacuum black holes can be reduced to a single …

We start by reviewing the existing literature on the creation of black holes during high-
energy particle collisions, both in the absence and in the presence of extra, compact …

In recent years, there has been considerable interest in theories formulated in anti-de Sitter
(AdS) spacetime. However, AdS spacetime fails to be globally hyperbolic, so a classical field …