[测地]曲率中心
center of (geodesic) curvature
2+1维零曲率方程
2+1-dimensional zero curvature equation
Bakry-Emery曲率张量
Bakry-Emery curvature tensor
Gaussian曲率近似
Gaussian curvature approximation
Gauss-Kronecker曲率
Gauss-Kronecker curvature
Moebius截面曲率
Moebius sectional curvature
PⅢ型频率曲线
P-Ⅲ type frequency curve
Pearson Type III frequency curve