On the stability of a brans-dicke static universe

Details On the stability of a brans-dicke static universe On the stability of a brans-dicke static universe

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phla..142..227s&link_type=abstract

Physics Letters A, Volume 142, Issue 4-5, p. 227-228.

Physics

1

Scientific paper

A Brans-Dicke flat universe is studied, concerning density perturbations, and found to be unstable. When compared with the general relativity static flat universe, it is found that the speed of sound can have real values in the BD case, while it has an imaginary value in general relativity.
With financial support from CNPq (Brazilian Agency).

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