Inhomogeneous Perfect Fluid Cosmologies in (4+1) Dimensions

Details Inhomogeneous Perfect Fluid Cosmologies in (4+1) Dimensions Inhomogeneous Perfect Fluid Cosmologies in (4+1) Dimensions

May 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996ap%26ss.239..141b&link_type=abstract

Astrophysics and Space Science, Volume 239, Issue 1, pp.141-150

Astronomy and Astrophysics

Astrophysics

1

Scientific paper

Exact solutions are obtained in (4+1) dimensions for plane symmetric and cylindrically symmetric inhomogeneous spacetimes. In the former case the three space depends on time only while the metric corresponding to the extra dimension is dependent on space as well as time coordinates. The cylindrically symmetric nonstatic solutions for the perfect fluid have no singularity near the axis, but show big bang type of singularity in the finite past. One of the classes of such solutions satisfies the barotropic equation of state of the form ρ=ɛp. Static solutions with cylindrically symmetric solutions are also obtained in 5 dimensions.

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