Besides that, we presents the gravitational wave energy density under the weak field situation and gives the x - y plane numerical calculation to curvaturescalar R and energy density .
还有计算了在弱场条件近似下引力驻波的能量密度，并给出曲率标量R和能量密度平面的数值计算。
2
The paper discusses on the hypersurfaces in locally symmetric manifolds with constant scalarcurvature and gets a pinching theorem which improves the known results.
研究局部对称空间中具有常数量曲率的紧致超曲面，给出这类超曲面的一个拼挤定理，改进了相关作者的结论。
3
In this paper, the authors discuss the submanifolds with constant scalarcurvature in a locally symmetric and conformally flat space, and obtain some intrinsic rigidity theorems.