Exact Brans-Dicke-Bianchi type-V solutions

1984 ◽  
Vol 96 (1) ◽  
pp. 183-189 ◽  
Author(s):  
D. Lorenz-Petzold

AbstractSpatially homogeneous cosmological models of the Bianchi type-V are considered in the Brans-Dicke scalar-tensor theory of gravitation. Exact solutions are given in the vacuum case as well as for models filled with dust, radiation or stiff matter.

2016 ◽  
Vol 94 (6) ◽  
pp. 578-582 ◽  
Author(s):  
M. Vijaya Santhi ◽  
V.U.M. Rao ◽  
Y. Aditya

The spatially homogeneous and anisotropic LRS Bianchi type-V Universe filled with variable modified Chaplygin gas in the framework of the Brans–Dicke (Brans and Dicke. Phys. Rev. 124, 925 (1961). doi:10.1103/PhysRev.124.925) scalar–tensor theory of gravitation has been studied. To obtain a determinate solution of the field equations we have used the condition that scalar field ([Formula: see text]) is a function of average scale factor. Some physical and kinematical properties of the model are discussed. We have also analyzed the stability of the solution.


1984 ◽  
Vol 95 (1) ◽  
pp. 175-178 ◽  
Author(s):  
D. Lorenz-Petzold

Amongst the various modifications of the general theory of relativity (GRT), the scalar-tensor theory of Brans and Dicke (BDT) is treated most seriously ([2], [17], [13]). The BDT is consistent with observations as long as the coupling parameter ω between the scalar and tensor components of gravitation is about equal to or greater than 500 [18]. However, there are no a priori theoretical reasons for excluding other values of ω. In the limit ω → ∞, the BDT reduces to the GRT for a constant BDT-scalar field Φ


2007 ◽  
Vol 5 (1) ◽  
pp. 79-84 ◽  
Author(s):  
D.R.K. Reddy ◽  
Atchuta Rao ◽  
Nirupama Devi ◽  
R.L. Naidu

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