2011 journal article

Action Principle for the Generalized Harmonic Formulation of General Relativity

Phys.Rev.D, 84, 084014.

By: J. Brown n

Source: ORCID
Added: November 4, 2021

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.