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Petrov type I silent universes with G3 isometry group: the uniqueness result recovered

Lode Wylleman·Norbert Van den Bergh
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Abstract

The \emph{silent universe conjecture} (Sopuerta 1997, van Elst et al. 1997) states that the only algebraically general silent universes are the orthogonally spatially homogeneous Bianchi I models. In the same paper by Sopuerta this was confirmed for the subcase where the spacetime also admits a group G3 of isometries. However the proof contains a conceptual mistake. We recover the result in a different way.

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Lode Wylleman, Norbert Van den Bergh. 2005-12-06. Petrov type I silent universes with G3 isometry group: the uniqueness result recovered. https://doi.org/10.1088/0264-9381%2F23%2F2%2F004

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