Spin coefficients and gauge fixing in the Newman-Penrose formalism
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DOI: 10.1103/physrevd.95.064012
Abstract: Since its introduction in 1962, the Newman-Penrose formalism has been widely used in analytical and numerical studies of Einstein's equations, like for example for the Teukolsky master equation, or as a powerful wave extraction tool… read more here.
Keywords: coefficients gauge; formalism; penrose formalism; newman penrose ... See more keywords
Einstein-Cartan-Dirac equations in the Newman-Penrose formalism
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DOI: 10.1103/physrevd.98.064046
Abstract: The Dirac equation on a non-torsional space-time has been studied extensively in the Newman-Penrose (NP) formalism. In particular, a comprehensive treatment is given by Chandrasekhar in his book `The Mathematical Theory of Black Holes', which… read more here.
Keywords: dirac equations; einstein cartan; formalism; penrose formalism ... See more keywords