Certain vacuum Bianchi-type models in a new relativistic theory of gravitation

1991 ◽  
Vol 179 (2) ◽  
pp. 223-235 ◽  
Author(s):  
T. Singh ◽  
Anil K. Agrawal
Keyword(s):  
Relativistic Theory ◽  
Bianchi Type ◽  
Theory Of Gravitation

A Bianchi Type -V Cosmological Model in Brans - Dicke Theory of Gravitation

2007 ◽  
Vol 5 (1) ◽  
pp. 79-84 ◽  
Author(s):  
D.R.K. Reddy ◽  
Atchuta Rao ◽  
Nirupama Devi ◽  
R.L. Naidu
Keyword(s):  
Cosmological Model ◽  
Bianchi Type ◽  
Theory Of Gravitation ◽  
Type V ◽  
Bianchi Type V

scholarly journals Bianchi Type-II, VIII & IX Perfect Fluid Cosmological Models in Brans Dicke Theory of Gravitation

2011 ◽  
Vol 02 (10) ◽  
pp. 1222-1228 ◽  
Author(s):  
Velagapudi Uma Maheswara Rao ◽  
Mandangi Vijaya Santhi
Keyword(s):  
Perfect Fluid ◽  
Bianchi Type ◽  
Cosmological Models ◽  
Type Ii ◽  
Theory Of Gravitation

scholarly journals Bianchi type-III Tsallis holographic dark energy model in Saez–Ballester theory of gravitation

2020 ◽  
Vol 80 (12) ◽  
Author(s):  
M. Vijaya Santhi ◽  
Y. Sobhanbabu
Keyword(s):  
Dark Energy ◽  
Bianchi Type ◽  
Graphical Representation ◽  
Holographic Dark Energy ◽  
Cosmological Parameters ◽  
State Parameter ◽  
Field Equations ◽  
Om Diagnostic ◽  
Hubble Radius ◽  
Theory Of Gravitation

AbstractIn this paper, we have investigated Tsallis holographic dark energy (infrared cutoff is the Hubble radius) in homogeneous and anisotropic Bianchi type-III Universe within the framework of Saez–Ballester scalar–tensor theory of gravitation. We have constructed non-interaction and interaction dark energy models by solving the Saez–Ballester field equations. To solve the field equations, we assume a relationship between the metric potentials of the model. We developed the various cosmological parameters (namely deceleration parameter q, equation of state parameter $$\omega _t$$ ω t , squared sound speed $$v_s^2$$ v s 2 , om-diagnostic parameter Om(z) and scalar field $$\phi $$ ϕ ) and well-known cosmological planes (namely $$\omega _t-\omega _t^{'}$$ ω t - ω t ′ plane, where $$'$$ ′ denotes derivative with respect to ln(a) and statefinders ($$r-s$$ r - s ) plane) and analyzed their behavior through graphical representation for our both the models. It is also, quite interesting to mention here that the obtained results are coincide with the modern observational data.

Mach's Principle and a Relativistic Theory of Gravitation

1961 ◽  
Vol 124 (3) ◽  
pp. 925-935 ◽  
Author(s):  
C. Brans ◽  
R. H. Dicke
Keyword(s):  
Relativistic Theory ◽  
Mach's Principle ◽  
Mach’S Principle ◽  
Theory Of Gravitation
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