Purely radiative perfect fluids with degenerate shear tensor

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dc.creatorKarimian, H. R.
dc.creatorBergh, N. Van den
dc.creatorDe Groote, L.
dc.date2008-01-22
dc.date2008-04-17
dc.date.accessioned2026-07-07T11:39:57Z
dc.date.available2026-07-07T11:39:57Z
dc.descriptionWe consider non-rotating geodesic perfect fluid spacetimes which are purely radiative in the sense that the gravitational field satisfies the covariant transverse conditions div H = div E = 0. We show that when the shear tensor S is degenerate, H, E and S necessarily commute and hence the resulting spacetimes are hypersurface homogeneous of Bianchi class A (modulo some purely electric exceptions).
dc.description8 pages, references added, typos corrected, simplified some algebraic manipulations
dc.identifierhttps://arxiv.org/abs/0801.3343
dc.identifierhttp://arxiv.org/abs/0801.3343
dc.identifierClass.Quant.Grav.25:125010,2008
dc.identifierdoi:10.1088/0264-9381/25/12/125010
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/200109
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titlePurely radiative perfect fluids with degenerate shear tensor
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