The object of this paper is to relate three equations in the Newman-Penrose system of equations to the conservation laws and, hence, to the equations of motion. To do so, the corresponding result is first obtained using the Einstein equations in a null coordinate system. The Newman-Penrose equations are then analyzed. They are separated into hypersurface, propagation, supplementary, and conservation equations. When all field equations except the three conservation equations have been appropriately satisfied, the desired result follows. © 1974 Plenum Publishing Company Limited.
CITATION STYLE
Goldberg, J. N. (1974). Conservation equations and equations of motion in the null formalism. General Relativity and Gravitation, 5(2), 183–200. https://doi.org/10.1007/BF00763500
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