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arXiv · 0704.2506

Isotropic cosmological singularities in spatially-homogeneous models with a cosmological constant

Paul Tod
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Abstract

We prove well-posedness of the initial value problem for the Einstein equations for spatially-homogeneous cosmologies with data at an isotropic cosmological singularity, for which the matter content is either a cosmological constant with collisionless particles of a single mass (possibly zero) or a cosmological constant with a perfect fluid having the radiation equation of state. In both cases, with a positive cosmological constant, these solutions, except possibly for Bianchi-type-IX, will expand forever, and be geodesically-complete into the future.

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Paul Tod. 2007-04-19. Isotropic cosmological singularities in spatially-homogeneous models with a cosmological constant. https://doi.org/10.1088/0264-9381%2F24%2F9%2F017

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