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

A black ring is a five-dimensional black hole with an event horizon of topology S 1× S 2. We
provide an introduction to the description of black rings in general relativity and string theory …

The symmetry algebra of asymptotically flat spacetimes at null infinity in three dimensions is
the semi-direct sum of the infinitesimal diffeomorphisms on the circle with an Abelian ideal of …

We find a surprising connection between asymptotically flat spacetimes and nonrelativistic
conformal systems in one lower dimension. The Bondi-Metzner-Sachs (BMS) group is the …

Using the inverse scattering method we construct an exact stationary asymptotically flat 4+ 1-
dimensional vacuum solution describing``black saturn'': a spherical black hole surrounded …

We review recent progress on the instabilities of black strings and branes both for pure
Einstein gravity as well as supergravity theories which are relevant for string theory. We …

It is argued that many nonextremal black branes exhibit a classical Gregory-Laflamme
instability if, and only if, they are locally thermodynamically unstable. For some black branes …

We develop the Hadamard renormalization of the stress-energy tensor for a massive scalar
field theory defined on a general spacetime of arbitrary dimension. Our formalism could be …

A new local, covariant'counter-term'is used to construct a variational principle for
asymptotically flat spacetimes in any spacetime dimension d⩾ 4. The new counter-term …

A bstract We derive the first law of black hole mechanics in the context of the Heterotic
Superstring effective action to first order in α′ using Wald's formalism. We carefully take into …