Tuning the properties of matter to any chosen dynamical behavior in cosmological models with elastic media.

Details Tuning the properties of matter to any chosen dynamical behavior in cosmological models with elastic media. Tuning the properties of matter to any chosen dynamical behavior in cosmological models with elastic media.

Jun 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995jmp....36.3054m&link_type=abstract

Journal of Mathematical Physics, Vol. 36, No. 6, p. 3054 - 3062

Mathematics

Mathematical Physics

2

Universe: Space-Time

Scientific paper

The field equations governing Bianchi type I space-times having elastic media as sources are constructed. Such equations turn out to be a system of three ordinary differential equations for the three independent components of the gravitational field. Plane symmetric and Robertson-Walker space-times are also discussed, and some examples of solutions are given. In the Robertson-Walker case, it turns out that it is possible to "tune" the elastic constitutive equations in such a way that any "required" behavior of the scale factor may be obtained. This feature closely resembles the scalar-field dominated case.

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