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Bianchi type-I cosmological model filled with viscous fluid in a modified Brans-Dicke cosmology. (English) Zbl 1259.83017
Summary: Adding the cosmological term, which is assumed to be variable in Brans-Dicke theory we have discussed about a Bianchi type-I cosmological model filled with viscous fluid with free gravitational field of Petrov type-D. The effect of viscousity on various kinematical parameters has been discussed. Finally, this model has been transformed to the original form [C. Brans and R. H. Dicke, Phys. Rev. (2) 124, 925–935 (1961; Zbl 0103.21402)] of Brans-Dicke theory including a variable cosmological term.

MSC:
83D05 Relativistic gravitational theories other than Einstein’s, including asymmetric field theories
83F05 Cosmology
83C55 Macroscopic interaction of the gravitational field with matter (hydrodynamics, etc.)
83C20 Classes of solutions; algebraically special solutions, metrics with symmetries for problems in general relativity and gravitational theory
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References:
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