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arXiv · gr-qc/9306030

Gravitational Observables and Local Symmetries

C. G. Torre
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Abstract

Using a recent classification of local symmetries of the vacuum Einstein equations, it is shown that there can be no observables for the vacuum gravitational field (in a closed universe) built as spatial integrals of local functions of Cauchy data and their derivatives.

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C. G. Torre. 1993-06-24. Gravitational Observables and Local Symmetries. https://doi.org/10.1103/physrevd.48.r2373

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