LordShadow_05
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- Why does Weinberg discard a term of the ricci tensor he should be taking into account in the post-newtonian approximation of fourth order?
To anyone who has studied Weinberg's book. Does anyone know why Weinberg discards the fourth order term of the purely spatial components of the ricci tensor? It's the chapter 9 (post-newtonian approximation) of his GR book. It doesn't make sense to me because he includes the R_{00} term of fourth order but not R_{ij}.