62 citations · 140 across the 5 of their papers we have counts for
5 papers
A wormhole with two black holes
Gérard Clément
We report on a new three-parameter stationary solution of the four-dimensional vacuum Einstein equations, which describes a Lorentzian wormhole harboring two antipodal co-rotating…
Stationary BPS solutions to dilaton-axion gravity
Gérard Clément, Dmitri Gal'tsov
Stationary four-dimensional BPS solutions to gravity coupled bosonic theories admitting a three-dimensional sigma-model representation on coset spaces are interpreted as null geode…
Wormhole cosmic strings
Gérard Clément
We construct regular multi-wormhole solutions to a gravitating model in three space-time dimensions, and extend these solutions to cylindrical traversable wormholes in four and…
Hollow cosmic string: the general-relativistic hollow cylinder
Gérard Clément, Ilhem Zouzou
We determine the different possible space-time metrics inside an infinite rotating hollow cylinder with given energy density and longitudinal and azimuthal stresses, the metric out…
Multi-Black-Holes in Three Dimensions
Gérard Clément
We construct time-dependent multi-centre solutions to three-dimensional general relativity with zero or negative cosmological constant. These solutions correspond to dynamical syst…