局部对称Lorentz空间中的具有常数量曲率的完备类空超曲面
张士诚, 吴报强
Complete Spacelike Hypersurfaces with Constant Scalar Curvature in Locally Symmetric Lorentz Spaces 
ZHANG Shi-cheng, WU Bao-qiang
数学季刊 . 2007, (2): 266 -275 .