Some rigidity results for compact initial data sets

Abstract

In this paper, we prove several rigidity results for compact initial data sets, in both the boundary and no boundary cases. In particular, under natural energy, boundary, and topological conditions, we obtain a global version of the main result in [15]. We also obtain some extensions of results in [12]. A number of examples are given in order to illustrate some of the results presented in this paper.

19 pages. All comments welcome. Small update