Answers are grounded in this paper and cite their sources.
Conditions are found that are sufficient to insure the development of trapped surfaces in space-times whose metrics satisfy the Einstein field equations in vacuum or in the presence of a massless scalar field. These conditions involve a topological requirement that a certain two-surface be compact and inequalities that must be satisfied by certain pieces of the characteristic data determining these space-times. It is shown that a particular piece of data playing an important role in these inequalities is related to angular momentum.
No takes yet. Share an insight, caveat, or question.
Demmie et al. (1973) studied this question.
Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context: