Key points are not available for this paper at this time.
An example is given of a space-time which satisfies the conditions for asymptotic region is not "as large" as that of Minkowski space-time.Received 31 October 1977DOI:https://doi.org/10.1103/PhysRevLett.40.203©1978 American Physical Society
Geroch et al. (Mon,) studied this question.