The energy and the linear momentum of space-times in general relativity
The authors give a generalization of their previous proof of the positive mass conjecture [ibid. 65, No. 1, 45-76 (1979; Zbl 0405.53045)] to a less restrictive definition of isolated system (i.e., asymptotic flatness) proposed by York.
scientific article; zbMATH DE number 1414245