Closed Trapped Surfaces in Cosmology
classification
🌀 gr-qc
keywords
closedsurfacestrappedadmitscompactconditionconvergencecosmological
read the original abstract
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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