Strengths of singularities in spherical symmetry
Nolan, Brien C. (1999) Strengths of singularities in spherical symmetry. Physical Review D, 60 (2). 024014-1-024014-9. ISSN 0556-2821
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Covariant equations characterizing the strength of a singularity in spherical symmetry are derived and several models are investigated. The difference between central and non-central singularities is emphasized. A slight modification to the definition of singularity strength is suggested. The gravitational weakness of shell crossing singularities in collapsing spherical dust is proven for timelike geodesics, closing a gap in the proof.
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