A gravitational Lagrangian in the Newman-Penrose formalism

Details A gravitational Lagrangian in the Newman-Penrose formalism A gravitational Lagrangian in the Newman-Penrose formalism

Jan 1978

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1978nciml..21...11h&link_type=abstract

Nuovo Cimento, Lettere, vol. 21, Jan. 7, 1978, p. 11-14. Research supported by the Consejo Nacional de Investigaciones Cientifi

Physics

2

Field Theory (Physics), Gravitation Theory, Gravitational Fields, Differential Equations, Einstein Equations, Independent Variables, Lagrange Multipliers, Tetrad Theory, Variational Principles

Scientific paper

A Lagrangian density is presented from which all the gravitational-field
equations in the spin-coefficient formalism, including the Einstein
condition, can be obtained. Two ways to deduce the Einstein condition
from a variational procedure are discussed.

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