Asymptotically Shear-free and Twist-free Null Geodesic Congruences

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dc.creatorKozameh, Carlos
dc.creatorNewman, Ezra T.
dc.date2007-03-21
dc.date.accessioned2026-07-07T10:37:16Z
dc.date.available2026-07-07T10:37:16Z
dc.descriptionWe show that, though they are rare, there are asymptotically flat space-times that possess null geodesic congruences that are both asymptotically shear- free and twist-free (surface forming). In particular, we display the class of space-times that possess this property and demonstrate how these congruences can be found. A special case within this class are the Robinson- Trautman space-times. In addition, we show that in each case the congruence is isolated in the sense that there are no other neighboring congruences with this dual property.
dc.description10 pages
dc.identifierhttps://arxiv.org/abs/gr-qc/0703108
dc.identifierhttp://arxiv.org/abs/gr-qc/0703108
dc.identifierClass.Quant.Grav.24:3085-3090,2007
dc.identifierdoi:10.1088/0264-9381/24/11/019
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/180322
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleAsymptotically Shear-free and Twist-free Null Geodesic Congruences
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