FIZIKA B 19 (2010) 1, 1-8

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KANTOWSKI-SACHS COSMOLOGICAL MODELS WITH TIME-VARYING G AND L

R. K. TIWARI and U. DWIVEDI
Department of Mathematics, Government Model Science College, Rewa (M. P.) India

Received 21 February 2009     Accepted 27 January 2010
Online 19 March 2010

Kantowski-Sachs cosmological models with perfect fluid and time varying G and L are presented. Exact solutions of the field equations are obtained by using the scalar of expansion proportional to the shear scalar q s, which leads to a relation between the metric potentials A=Bn, where n is a constant. The corresponding physical interpretation of the cosmological solutions are also discussed.

PACS numbers: 04.20.Jb, 98.80Cqy
UDC 524.83

Keywords: cosmology, varying G and L, Kantowski-Sachs model

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