Static cosmological solutions in wesson's 5D theory of gravitation

1995 ◽  
Vol 225 (2) ◽  
pp. 237-240 ◽  
Author(s):  
Marcelo S. Berman ◽  
M. M. Som
Keyword(s):  
Cosmological Solutions ◽  
Theory Of Gravitation

scholarly journals Some Friedmann cosmological solutions in the scale covariant theory of gravitation

1991 ◽  
Vol 14 (2) ◽  
pp. 305-308 ◽  
Author(s):  
Aroonkumar Beesham
Keyword(s):  
Gravitational Constant ◽  
Gauge Function ◽  
Covariant Theory ◽  
Time Varying ◽  
Scale Covariant Theory ◽  
Independent Equation ◽  
Cosmological Solutions ◽  
Theory Of Gravitation ◽  
Varying Gravitational Constant ◽  
Friedmann Robertson Walker

The scale covariant theory of gravity admits the possibility of a time varying gravitational constant but contains a gauge function for which there is no independent equation. The circumstances under which explicit forms for a gauge function may be derived within the context of Friedmann-Robertson-Walker cosmological models are investigated and several forms are derived.

Cosmological solutions to a linear theory of gravitation

1971 ◽  
Vol 4 (2) ◽  
pp. 205-216 ◽  
Author(s):  
H. O. Girotti ◽  
D. Wisnivesky
Keyword(s):  
Linear Theory ◽  
Cosmological Solutions ◽  
Theory Of Gravitation

String Cosmological Solutions in Self-Creation Theory of Gravitation

2007 ◽  
Vol 47 (3) ◽  
pp. 640-648 ◽  
Author(s):  
R. Venkateswarlu ◽  
V. U. M. Rao ◽  
K. Pavan Kumar
Keyword(s):  
Cosmological Solutions ◽  
Theory Of Gravitation

Cosmological Solutions of Bi-metric Theories of Gravitation

1984 ◽  
Vol 496 (3) ◽  
pp. 172-178 ◽  
Author(s):  
Dierck-Ekkehard Liebscher ◽  
Jan Mücket
Keyword(s):  
Cosmological Solutions ◽  
Theories Of Gravitation

Field equations in the neighbourhood of a particle in a conformal theory of gravitation. II

1969 ◽  
Vol 313 (1512) ◽  
pp. 71-82 ◽  
Keyword(s):  
Local Geometry ◽  
Field Equations ◽  
Schwarzschild Solution ◽  
Conformal Theory ◽  
Conformally Invariant ◽  
Coordinate Singularity ◽  
Previous Solution ◽  
Theory Of Gravitation ◽  
Spherically Symmetric Metric ◽  
Radial Variable

The field equations in the neighbourhood of a particle for a spherically symmetric metric in the conformal theory of gravitation put forward by Hoyle & Narlikar are examined. As the theory is conformally invariant, one can use different but physically equivalent conformal frames to study the equations. Previously these equations were studied in a conformal frame which, though suitable far away from the isolated particle, turns out not to be suitable in the neighbourhood of the particle. In the present paper a solution in a conformal frame is obtained that is suitable for considering regions near the particle. The solution thus obtained differs from the previous one in several respects. For example, it has no coordinate singularity for any non-zero value of the radial variable, unlike the previous solution or the Schwarzschild solution. It is also shown with the use of this solution that in this theory distant matter has an effect on local geometry.

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