10.9k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
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9 papers · 2 filters
Uniformly accelerating black holes in a de Sitter universe
J. Podolsky, J. B. Griffiths
A class of exact solutions of Einstein's equations is analysed which describes uniformly accelerating charged black holes in an asymptotically de Sitter universe. This is a general…
Exact non-singular waves in the anti-de Sitter universe
J. Podolsky
A class of radiative solutions of Einstein's field equations with a negative cosmological constant and a pure radiation is investigated. The space-times, which generalize the Defri…
Null limits of the C-metric
J. Podolsky, J. B. Griffiths
The C-metric is usually understood as describing two black holes which accelerate in opposite directions under the action of some conical singularity. Here, we examine all the solu…
Null limits of generalised Bonnor-Swaminarayan solutions
J. Podolsky, J. B. Griffiths
The Bonnor-Swaminarayan solutions are boost-rotation symmetric space-times which describe the motion of pairs of accelerating particles which are possibly connected to strings (str…
Chaos in a modified Henon-Heiles system describing geodesics in gravitational waves
K. Vesely, J. Podolsky
A Hamiltonian system with a modified Henon-Heiles potential is investigated. This describes the motion of free test particles in vacuum gravitational pp-wave spacetimes with both q…
Slowly rotating voids in cosmology
Tomas Dolezel, Jiri Bicak, Nathalie Deruelle
We consider a spacetime consisting of an empty void separated from an almost Friedmann-Lema\^ıtre-Robertson-Walker (FLRW) dust universe by a spherically symmetric, slowly rotating…
Exact radiative spacetimes: some recent developments
Jiri Bicak
Five classes of radiative solutions of Einstein's field equations are discussed in the light of some new developments. These are plane waves and their collisions, cylindrical waves…
Brane versus shell cosmologies in Einstein and Einstein-Gauss-Bonnet theories
Nathalie Deruelle, Tomas Dolezel
We first illustrate on a simple example how, in existing brane cosmological models, the connection of a 'bulk' region to its mirror image creates matter on the 'brane'. Next, we pr…
The collision and snapping of cosmic strings generating spherical impulsive gravitational waves
J. Podolsky, J. B. Griffiths
The Penrose method for constructing spherical impulsive gravitational waves is investigated in detail, including alternative spatial sections and an arbitrary cosmological constant…