Formalismo de Newman-Penrose (Portuguese Wikipedia)

Analysis of information sources in references of the Wikipedia article "Formalismo de Newman-Penrose" in Portuguese language version.

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Ezra T. Newman and Roger Penrose (1962). «An Approach to Gravitational Radiation by a Method of Spin Coefficients». Journal of Mathematical Physics. 3 (3): 566–768. Bibcode:1962JMP.....3..566N. doi:10.1063/1.1724257 O artigo original por Newman e Penrose, o qual introduz o formalismo, e o usa derivar resultados exemplos.
Saul Teukolsky (1973). «Perturbations of a rotating black hole». Astrophysical Journal. 185: 635–647. Bibcode:1973ApJ...185..635T. doi:10.1086/152444

Ezra T. Newman and Roger Penrose (1962). «An Approach to Gravitational Radiation by a Method of Spin Coefficients». Journal of Mathematical Physics. 3 (3): 566–768. Bibcode:1962JMP.....3..566N. doi:10.1063/1.1724257 O artigo original por Newman e Penrose, o qual introduz o formalismo, e o usa derivar resultados exemplos.
Saul Teukolsky (1973). «Perturbations of a rotating black hole». Astrophysical Journal. 185: 635–647. Bibcode:1973ApJ...185..635T. doi:10.1086/152444

Chandrasekhar, S. (1998). The Mathematical Theory of Black Holes Reprinted ed. [S.l.]: Oxford University Press. p. 40. ISBN 0-19850370-9. Consultado em 13 de maio de 2013. The Newman-Penrose formalism is a tetrad formalism with a special choice of the basis vectors.