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4 papers · 2 filters
Properties of kinematic singularities
A. A. Coley, S. Hervik, W. C. Lim +1
The locally rotationally symmetric tilted perfect fluid Bianchi type V cosmological model provides examples of future geodesically complete spacetimes that admit a `kinematic singu…
Lorentzian spacetimes with constant curvature invariants in four dimensions
Alan Coley, Sigbjorn Hervik, Nicos Pelavas
In this paper we investigate four dimensional Lorentzian spacetimes with constant curvature invariants ( spacetimes). We prove that if a four dimensional spacetime is , t…
Spacetimes characterized by their scalar curvature invariants
Alan Coley, Sigbjorn Hervik, Nicos Pelavas
In this paper we determine the class of four-dimensional Lorentzian manifolds that can be completely characterized by the scalar polynomial curvature invariants constructed from th…
The Evolution of Black Holes in the Mini-Superspace Approximation of Loop Quantum Gravity
J. Brannlund, S. Kloster, A. DeBenedictis
Using the improved quantization technique to the mini-superspace approximation of loop quantum gravity, we study the evolution of black holes supported by a cosmological constant.…