TY - EJOUR
AU - Velagapudi, Uma Maheswara Rao
AU - Davuluri, Neelima
PY - 2023
DA - November
TI - String cosmological models with bulk viscosity in Nordtvedt’s general scalar-tensor theory of gravitation
T2 - Journal of Theoretical and Applied Physics
VL - 7
L1 - https://oiccpress.com/journal-of-theoretical-and-applied-physics/article/string-cosmological-models-with-bulk-viscosity-in-nordtvedts-general-scalar-tensor-theory-of-gravitation/
DO - 10.1186/2251-7235-7-50
N2 - AbstractWe have obtained and presented spatially homogeneous Bianchi types II, VIII, and IX string cosmological models with bulk viscosity in Nordtvedt’s (Astrophys. J. 161:1059, 1970) general scalar-tensor theory of gravitation with the help of a special case proposed by Schwinger. It is observed that only the bulk viscous cosmological model exists in the case of Bianchi type IX universe. Some important features of the models, thus obtained, have been discussed.      
IS - 1
PB - OICC Press
KW - Bianchi type II, Cosmic strings, Nordtvedt’ s general scalar, Tensor theory, VIII, Bulk viscosity, And IX metrics 
EN -