Euclidean Friedman-Robertson-Walker cosmology in Brans-Dicke-like theories of gravity

Details Euclidean Friedman-Robertson-Walker cosmology in Brans-Dicke-like theories of gravity Euclidean Friedman-Robertson-Walker cosmology in Brans-Dicke-like theories of gravity

Mar 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002jmp....43.1487c&link_type=abstract

Journal of Mathematical Physics, Volume 43, Issue 3, pp. 1487-1492 (2002).

Mathematics

Mathematical Physics

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Exact Solutions

Scientific paper

An explicit and tractable form of the complete solution of Brans-Dicke Euclidean Friedman-Robertson-Walker cosmology, in the matter dominated area, is proposed. In this derivation, the (generally imposed) constraint on the Brans-Dicke parameter ω>-3/2 is relaxed. An isolated power-law solution is exhibited, which turns out to describe an accelerated expansion of the universe, without recourse to any cosmological constant or quintessence matter. It appears that this solution can be generalized for all Brans-Dicke-like theories of gravity.

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