Constant mean curvature;
Spacelike hypersurface;
Generalized Robertson-Walker spacetime;
UNIQUENESS;
D O I:
10.1007/s12220-018-00117-8
中图分类号:
O1 [数学];
学科分类号:
0701 ;
070101 ;
摘要:
In this paper, we provide under certain geometric and physical assumptions new uniqueness and non-existence results for complete spacelike hypersurfaces of constant mean curvature in spatially open Generalized Robertson-Walker spacetimes. Some of our results are then applied to relevant spacetimes as the steady-state spacetime, Einstein-de Sitter spacetime, and certain radiation models.