|
FIZIKA B 19 (2010) 3, 149-160
 
SPATIALLY HOMOGENEOUS BIANCHI TYPE-V COSMOLOGICAL MODELS IN BRANS-DICKE THEORY
MOHD. ZEYAUDDINa and SHRI RAMb
aDepartment of Applied Sciences, Sharda University, Sector 23 A, Gurgaon-122017, India
bDepartment of Applied Mathematics, Institute of Technology, Banaras Hindu University, Varanasi-2210 05, India
E-mail addresses: zeyaitbhu@rediffmail.com ,
srmathitbhu@rediffmail.com
Received 19 August 2009; Accepted 12 January 2011
Online 24 February 2011
We discuss the field equations of Brans-Dicke theory for
a spatially homogeneous and anisotropic Bianchi type-V
space-time in the presence of a perfect fluid and obtain
their exact solutions by applying the law of variation
of Hubble's parameter which yields a constant value of
deceleration parameter. The corresponding cosmological
models are divided into two categories, (i) singular
models with power-law expansion, (ii) non-singular
models with exponential expansion. The physical and
kinematical behaviors of the cosmological models are
discussed. These models are compatible with the results
of recent observations.
PACS numbers: 98.80. Es; 98.80. -k
UDC 524.83, 52-423
Keywords: cosmology, Bianchi V models, Hubble's parameter, Brans-Dicke theory
|
