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Mathematical structure of tetrad equations for vacuum relativity
Phys. Rev. D 71, 044004 – Published 2 February, 2005
DOI: https://doi.org/10.1103/PhysRevD.71.044004
Abstract
The tetrad partial differential equations formulated by Buchman and Bardeen for vacuum gravity are shown to be well posed by calculation of the Cartan characters of an associated exterior differential system. Gauge specializations are discussed. A Cartan 4-form is found for this field theory, together with its intrinsic version the Lagrangian density.
Article Text
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