Spacetime averaging of exotic singularity universes

Details Spacetime averaging of exotic singularity universes Spacetime averaging of exotic singularity universes

2011-05-18

arxiv.org/abs/1105.3607v2

Phys.Lett.B702:320-323,2011

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

5 pages, no figures, REVTEX4-1, minor improvements

Scientific paper

10.1016/j.physletb.2011.07.043

Taking a spacetime average as a measure of the strength of singularities we show that big-rips (type I) are stronger than big-bangs. The former have infinite spacetime averages while the latter have them equal to zero. The sudden future singularities (type II) and $w-$singularities (type V) have finite spacetime averages. The finite scale factor (type III) singularities for some values of the parameters may have an infinite average and in that sense they may be considered stronger than big-bangs.

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