Oscillatory behavior in cosmological models

Details Oscillatory behavior in cosmological models Oscillatory behavior in cosmological models

Nov 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995ijtp...34.2293c&link_type=abstract

International Journal of Theoretical Physics, Volume 34, Issue 11, pp.2293-2306

Physics

1

Scientific paper

Oscillatory behavior in cosmological models is investigated, motivated, in part, by the apparent periodic distribution of galaxies in deep narrow-cone red-shift surveys. In particular, oscillatory behavior in two cosmological models is studied; a qualitative analysis is performed and approximate solutions are found for a soft inflationary model and for a Friedmann-Robertson-Walker model containing a perfect fluid and a scalar field source. These two models are ‘conformally equivalent’ to particular models arising from a large class of scalar-tensor theories. It is then argued that such oscillatory behavior is a generic property of scalartensor theories of gravity.

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