Abstract
It is proven that there do not exist any Bianchi type-IX universes which expand for an infinite time, provided only that the matter satisfies the dominant energy condition and has non-negative average pressure (i.e., a non-negative trace of the spatial projection of the stress-energy tensor). This generalizes a proof recently given by us for the case of diagonal Bianchi type-IX solutions.
- Received 13 November 1989
DOI:https://doi.org/10.1103/PhysRevD.41.2444
©1990 American Physical Society