Nonexistence of Generalized Apparent Horizons in Minkowski Space
arXiv:0910.5042 · doi:10.1088/0264-9381/26/7/078001
Abstract
We establish a Positive Mass Theorem for initial data sets of the Einstein equations having generalized trapped surface boundary. In particular we answer a question posed by R. Wald concerning the existence of generalized apparent horizons in Minkowski space.