Is there GR in the bimetric scalar-tensor theory of gravitation?

Details Is there GR in the bimetric scalar-tensor theory of gravitation? Is there GR in the bimetric scalar-tensor theory of gravitation?

Sep 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.207....1g&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 207, no. 1, p. 1-4

Astronomy and Astrophysics

Astrophysics

6

Bimetric Theories, Gravitation Theory, Gravitational Constant, Relativity, Metric Space, Neutron Stars, Tensor Analysis

Scientific paper

A theory of gravitation with a flat background metric and a dynamical variable Phi (variable gravitational constant) is investigated. It is shown that such bimetric scalar-tensor theory (BSTT) generalized general relativity (GR) as all the solutions of GR equations and Phi (x) = constant satisfy BSTT equations, firstly, and BSTT equations contain non-Einstein solutions with the variable Phi, secondly. Due to this fact, the problem on the agreement of BSTT with the observational data is reduced to the problem on the agreement of GR with the observational data and to the interpretation of the solutions with the variable Phi. The latter may prove useful for the prediction of new effects. Examples of such effects are discussed.

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