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arXiv · 2409.15854

Spatially-Homogeneous Cosmologies

Juan Antonio Sáez·Salvador Mengual·Joan Josep Ferrando
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Abstract

The necessary and sufficient conditions for a perfect fluid solution to define a spatially-homogeneous cosmology are achieved. These conditions are Intrinsic, Deductive, Explicit and ALgorithmic, and they offer an IDEAL labeling of these geometries. When a three-dimensional group acts on the three-dimensional space-like orbits, the Bianchi type of the model is also obtained.

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Juan Antonio Sáez, Salvador Mengual, Joan Josep Ferrando. 2024-09-24. Spatially-Homogeneous Cosmologies. https://doi.org/10.1088/1361-6382%2Fad7664

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