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28 March 2024
 
  » arxiv » gr-qc/0208022

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An interpretation of Robinson-Trautman type N solutions
J.B. Griffiths ; J. Podolsky ; P. Docherty ;
Date 8 Aug 2002
Journal Class.Quant.Grav. 19 (2002) 4649-4662
Subject gr-qc
AbstractThe Robinson-Trautman type N solutions, which describe expanding gravitational waves, are investigated for all possible values of the cosmological constant Lambda and the curvature parameter epsilon. The wave surfaces are always (hemi-)spherical, with successive surfaces displaced in a way which depends on epsilon. Explicit sandwich waves of this class are studied in Minkowski, de Sitter or anti-de Sitter backgrounds. A particular family of such solutions which can be used to represent snapping or decaying cosmic strings is considered in detail, and its singularity and global structure is presented.
Source arXiv, gr-qc/0208022
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