Can a Kasner Universe with a Viscous Cosmological Fluid be Anisotropic?

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dc.creatorBrevik, I.
dc.creatorPettersen, S. V.
dc.date2000-03-09
dc.date.accessioned2026-07-07T12:29:07Z
dc.date.available2026-07-07T12:29:07Z
dc.descriptionA Bianchi type -I metric of Kasner form is considered, when the space is filled with a viscous fluid. Whereas an ideal (nonviscous) fluid permits the Kasner metric to be anisotropic provided that the fluid satisfies the Zel'dovich equation of state, the viscous fluid does not permit the Kasner metric to be anisotropic at all. In the latter case, we calculate the Kasner (isotropic) metric expressed by the fluid's density, pressure, and bulk viscosity, at some chosen instant $t=t_0$. The equation of state is also calculated. The present paper is related to a recent Comment of Cataldo and del Campo [Phys. Rev. D, scheduled to April 15, 2000], on a previous work of the present authors [Phys. Rev. D {\bf 56}, 3322 (1997)].
dc.description8 pages, LaTeX, no figures. To appear in PRD
dc.identifierhttps://arxiv.org/abs/gr-qc/0003039
dc.identifierhttp://arxiv.org/abs/gr-qc/0003039
dc.identifierPhys.Rev.D61:127305,2000
dc.identifierdoi:10.1103/PhysRevD.61.127305
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/215767
dc.subjectGeneral Relativity and Quantum Cosmology
dc.titleCan a Kasner Universe with a Viscous Cosmological Fluid be Anisotropic?
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