Lovelock theory is a natural extension of Einstein theory of gravity to higher dimensions, and
it is of great interest in theoretical physics as it describes a wide class of models. In …

Gravitation theories selected by requiring that they have a unique anti–de Sitter vacuum with
a fixed cosmological constant are studied. For a given dimension d, the Lagrangians under …

A bstract The gravitational charge algebra of generic asymptotically locally (A) dS
spacetimes is derived in n dimensions. The analysis is performed in the …

A new formula for the conserved charges in 3+ 1 gravity for spacetimes with local anti–de
Sitter asymptotic geometry is proposed. It is shown that requiring the action to have an …

The null surfaces of a spacetime act as oneway membranes and can block information for a
corresponding family of observers (timelike curves). Since lack of information can be related …

A bstract We show that the Kounterterms for pure AdS gravity in arbitrary even dimensions
coincide with the boundary counterterms obtained through holographic renormalization if …

The method of topological renormalization in anti–de Sitter (AdS) gravity consists in adding
to the action a topological term which renders it finite, defining at the same time a well-posed …

In any generally covariant theory of gravity, we show the relationship between the linearized
asymptotically conserved current and its nonlinear completion through the identically …

We show that regular black holes given by Culetu [14] can be obtained by coupling
Einstein's gravity with the nonlinear electrodynamics source. The non-singular black hole …

In this paper, the connection between the Lorentz-covariant counterterms that regularize the
four-dimensional AdS gravity action and topological invariants is explored. It is shown that …