A. Einstein, L. Infeld and B. Hoffmann, “The Gravitational Equations and the Problem of Motion,” Annals of Mathematics, Vol. 39, No. 1, 1938, pp. 65-100. Hdoi:10.2307/1968714

has been cited by the following article:

• TITLE: Approximation Method for the Relaxed Covariant Form of the Gravitational Field Equations for Particles

  AUTHORS: Emanuel Gallo, Osvaldo M. Moreschi

  KEYWORDS: General Relativity; Approximation Methods; Particles

  JOURNAL NAME: Journal of Modern Physics, Vol.3 No.9A, September 28, 2012

  ABSTRACT: We present a study of the so called relaxed field equations of general relativity in terms of a decomposition of the metric; which is designed to deal with the notion of particles. Several known results are generalized to a coordinate free covariant discussion. We apply our techniques to the study of a particle up to second order.