24 citations · 65 across the 7 of their papers we have counts for
5 papers · 1 filter
New Examples of Marginally Trapped Surfaces and Tubes in Warped Spacetimes
J. L. Flores, S. Haesen, M. Ortega
In the present paper we provide new examples of marginally trapped surfaces and tubes in FLRW spacetimes by using a basic relation between these objects and CMC surfaces in 3-manif…
Marginally trapped surfaces in Minkowski 4-space invariant under a rotation subgroup of the Lorentz group
Stefan Haesen, Miguel Ortega
A local classification of spacelike surfaces in Minkowski 4-space, which are invariant under spacelike rotations, and with mean curvature vector either vanishing or lightlike, is o…
Boost invariant marginally trapped surfaces in Minkowski 4-space
Stefan Haesen, Miguel Ortega
The extremal and partly marginally trapped surfaces in Minkowski 4-space, which are invariant under the group of boost isometries, are classified. Moreover, it is shown that there…
A new method to construct spacetimes with a spacelike circle action
Stefan Haesen, Francisco Palomo, Alfonso Romero
A new general procedure to construct realistic spacetimes is introduced. It is based on the null congruence on a time-oriented Lorentzian manifold associated to a certain timelike…
Ideally embedded space-times
Stefan Haesen, Leopold Verstraelen
Due to the growing interest in embeddings of space-time in higher-dimensional spaces we consider a specific type of embedding. After proving an inequality between intrinsically def…