Closed Trapped Surfaces in Cosmology

Details Closed Trapped Surfaces in Cosmology Closed Trapped Surfaces in Cosmology

2003-04-09

arxiv.org/abs/gr-qc/0304039v1

Gen.Rel.Grav. 35 (2003) 1309-1319

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

11 pages. To appear in GRG, Vol 35 (August issue)

Scientific paper

The existence of closed trapped surfaces need not imply a cosmological
singularity when the spatial hypersurfaces are compact. This is illustrated by
a variety of examples, in particular de Sitter spacetime admits many closed
trapped surfaces and obeys the null convergence condition but is non-singular
in the k=+1 frame.

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