Cosmological models in generalized scalar-tensor theory with cosmological term and bulk viscosity |
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| Authors: | Tarkeshwar Singh GP Singh A Beesham |
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| Institution: | (1) Department of Mathematical Sciences, University of Zululand, Private Bag X1001, Kwa-Dlangezwa, 3886, South Africa |
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| Abstract: | Exponential and power law solutions for homogeneous cosmological modelshave been discussed in a generalized scalar-tensor theory where both thecosmological term  and coupling parameter  are taken tobe functions of the scalar field  , along with the bulk viscousstress of the cosmic fluid. Assuming simple relationships of the scalarfield with the cosmological term and the coupling parameter, all thesolutions are studied in Dicke's revised units. By use of a conformaltransformation, the solutions are also expressed in atomic units. |
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