Warped products and FRW cosmology

2004/10/19 by Soon-Tae Hong · 1 citation
Physics and Astronomy · #gr-qc

paper · pdf

published as J.Korean Phys.Soc. 45 (2004) S95-S98 · 4 pages

arxiv created 2004/10/19 · arxiv updated 2009/12/01

Abstract

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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• Anisotropy universe in doubly warped product scheme

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