Warped products and FRW cosmology

Details Warped products and FRW cosmology Warped products and FRW cosmology

2004-10-19

arxiv.org/abs/gr-qc/0410090v1

J.Korean Phys.Soc. 45 (2004) S95-S98

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages

Scientific paper

We study the Friedmann-Robertson-Walker cosmological model to investigate non-smooth curvatures associated with multiple discontinuities involved in the evolution of the universe, by exploiting Lorentzian warped product scheme. Introducing double discontinuities occurred at the radiation-matter and matter-lambda phase transitions, we also discuss non-smooth features of the spatially flat Friedmann-Robertson-Walker universe.

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