On spherically symmetric singularity-free models in relativistic cosmology

Details On spherically symmetric singularity-free models in relativistic cosmology On spherically symmetric singularity-free models in relativistic cosmology

Oct 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000prama..55..623t&link_type=abstract

Pramana, vol. 55, Issue 4, p.623

Mathematics

Logic

2

Scientific paper

The introduction of time dependence through a scale factor in a non-conformally flat static cosmological model whose spacetime can be embedded in a five demensional flat spacetime is shown to give rise to two spherical models of universe filled with perfect fluid acompannied with radial heat flux without any Big Bang type singularity. The first model describes an ever existing universe which witnesses a transition from state of contraction to that of ever expansion. The second model represents a universe oscillating between two regular states.

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