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Warped products and FRW cosmology

Soon-Tae Hong
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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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Soon-Tae Hong. 2004-10-19. Warped products and FRW cosmology. https://arxiv.org/abs/gr-qc/0410090

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