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arXiv · 1008.3177

Action Principle for the Generalized Harmonic Formulation of General Relativity

J. David Brown
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Abstract

An action principle for the generalized harmonic formulation of general relativity is presented. The action is a functional of the spacetime metric and the gauge source vector. An action principle for the Z4 formulation of general relativity has been proposed recently by Bona, Bona--Casas and Palenzuela (BBP). The relationship between the generalized harmonic action and the BBP action is discussed in detail.

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J. David Brown. 2010-08-18. Action Principle for the Generalized Harmonic Formulation of General Relativity. https://doi.org/10.1103/physrevd.84.084014

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