
%0 Journal Article
%A Abdussattar, 
%A Vishwakarma, R. G. 
%T Some Robertson-Walker Models with Variable G and &#955;
%J Australian Journal of Physics
%D 1997/10/06
%V 50
%N 5
%P 893-901
%K 
%R https://doi.org/10.1071/P96095
%U https://www.publish.csiro.au/paper/P96095 
%X Some Robertson-Walker (RW) models admitting a contracted Ricci collineation along the fluid flow vector and having time-varying G and &#x039B; are investigated. The nature of the expansion of the models obtained in the cases k = &#177;l is found to be interchanged from the corresponding standard FRW models. Estimates of the present values of various cosmological parameters are obtained and found to be well within the observational limits. 
