Limits of the energy-momentum tensor in general relativity
arXiv:gr-qc/9708045 · doi:10.1088/0264-9381/15/4/023
Abstract
A limiting diagram for the Segre classification of the energy-momentum tensor is obtained and discussed in connection with a Penrose specialization diagram for the Segre types. A generalization of the coordinate-free approach to limits of Paiva et al. to include non-vacuum space-times is made. Geroch's work on limits of space-times is also extended. The same argument also justifies part of the procedure for classification of a given spacetime using Cartan scalars.
LaTeX, 21 pages