I would like to get a mathematically precise formulation of the Ehlers-Geren-Sachs theorem. I have heard that this theorem roughly tells us that the universe in total is described by a FLRW metric if there exists a set of fundamental observers, with respect to whom all observable properties of the Universe are isotropic. But this in my eyes is not a mathematically precise statement and I would like to see a rigorous mathematical theorem about differential-geometric properties of spacetimes. Can you give me a reference, where I can find it?(adsbygoogle = window.adsbygoogle || []).push({});

**Physics Forums - The Fusion of Science and Community**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Mathematically precise formulation of Ehlers-Geren-Sachs theorem

Loading...

Similar Threads for Mathematically precise formulation | Date |
---|---|

I Reference frames - mathematical view | Mar 28, 2018 |

B Light-clock and time dilation [was: Hydrogen atom expressed mathematically] | Nov 25, 2017 |

I Help with special relativity mathematics | Nov 17, 2017 |

B Mathematical description of a black hole merger | Oct 9, 2017 |

Very precise Michelson-Morley experiments | Oct 10, 2015 |

**Physics Forums - The Fusion of Science and Community**