来源:Classical and Quantum Gravity, 2010, 27(21): 217001.
DOI:10.1088/0264-9381/27/21/217001
摘要
In this note, we show that any inextensible time-symmetric space-like hypersurface of differentiability class C(k), k >= 2, isometrically embedded in the maximal Schwarzschild geometry must intersect the bifurcation sphere.