讨论了所有三维空间中Weingarnten曲面的平行变换,三维R^2,1空间中类时曲面具有常Gauss曲率且主曲率k1,k2为虚值的曲面平行变换以及k1=k2曲面的平行变换.
The parallel transformation on all the Weingarten surfaces in three-dimensional space, and the parallel transformation on time-like surfaces of constant Gauss curvature and imaginary principal curvatures, were studied.