Characterisation of orthogonal perfect fluid cosmological spacetimes

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dc.creatorDadhich, Naresh
dc.creatorPatel, L. K.
dc.creatorGovinder, K. S.
dc.creatorLeach, P. G. L.
dc.date1994-08-31
dc.date.accessioned2026-07-07T03:30:25Z
dc.date.available2026-07-07T03:30:25Z
dc.descriptionWe consider the general orthogonal metric separable in space and time variables in comoving coordinates. We then characterise perfect fluid models admitted by such a metric. It turns out that the homogeneous models can only be either FLRW or Bianchi I while the inhomogeneous ones can only admit $G_2 $ (two mutually as well as hypersurface orthogonal spacelike Killing vectors) isometry. The latter can possess singularities of various kinds or none. The non-singular family is however unique and cylindrically symmetric.
dc.descriptionTeX pages 18, IUCAA-27/94
dc.identifierhttps://arxiv.org/abs/gr-qc/9408038
dc.identifierhttp://arxiv.org/abs/gr-qc/9408038
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/35528
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCharacterisation of orthogonal perfect fluid cosmological spacetimes
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