A kinematic method to obtain conformal factors
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A kinematic method to obtain conformal factors

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A kinematic method to obtain conformal factors

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Herrero Debón, Alicia; Morales Lladosa, Juan Antonio
Aquest document és un/a article, creat/da en: 2000
Radial conformal motions are considered in conformally flat space-times and their properties are used to obtain conformal factors. The geodesic case leads directly to the conformal factor of Robertson-Walker universes. General cases admitting homogeneous expansion or orthogonal hypersurfaces of constant curvature are analyzed separately. When the two conditions above are considered together a subfamily of the Stephani perfect fluid solutions, with acceleration Fermi-Walker propagated along the flow of the fluid, follows. The corresponding conformal factors are calculated and contrasted with those associated with Robertson-Walker space-times.

    Herrero Debón, Alicia Morales Lladosa, Juan Antonio 2000 A kinematic method to obtain conformal factors Journal of Mathematical Physics 41 7 4765 4776
https://doi.org/10.1063/1.533376
distribuït sota llicència Creative Commons de Reconeixement-NoComercial 3.0 No adaptada

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