Oscillating and Inflating Universe in SO(3)-Gravitation Theory

1991 ◽  
Vol 46 (11) ◽  
pp. 967-975
Author(s):  
M. Mattes ◽  
M. Sorg
Keyword(s):  
Gravitation Theory ◽  
Isotropic Universe ◽  
Inflationary Phase ◽  
Homogeneous Isotropic Universe

AbstractThe predictions of SO (3) Gravitation Theory are studied for a homogeneous, isotropic universe. Various types of oscillations are obtained for the pre-inflationary phase, where the geometry experiences violent fluctuations. These are ultimately terminating at either re-collaps or regular inflation.

scholarly journals A MINIMAL MODEL FOR DILATONIC GRAVITY

2000 ◽  
Vol 15 (32) ◽  
pp. 1977-1990 ◽  
Author(s):  
P. P. FIZIEV
Keyword(s):  
Time Evolution ◽  
Minimal Model ◽  
Scale Factor ◽  
Tensor Model ◽  
Isotropic Universe ◽  
General Properties ◽  
Homogeneous Isotropic Universe

We study a new minimal scalar–tensor model of gravity with Brans–Dicke factor ω(Φ)≡0 and cosmological factor Π(Φ). The constraints on Π(Φ) from known gravitational experiments are derived. We show that almost any time evolution of the scale factor in a homogeneous isotropic Universe can be obtained via a properly chosen Π(Φ) and discuss the general properties of models of this type.

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