先验误差 meaning in English

prior uncertainty

In chapter 3 , a new decomposition algorithm for the heat equation is also developed by using saul ' yev ' s asymmetric schemes at the interface points , and the prior error estimates of the approximate solution is obtained . the results of the new algorithm is compared with that of the algorithm in [ 13 ]
在第三章，我们以saul ' yev非对称格式作内边界处理，发展了的新的区域分解算法，得到了差分解的先验误差估计，并与dawson等人的算法作了比较。
In chapter 4 , we present some new techniques in designing finite difference domain decomposition algorithm for the heat equation . the basic procedure is to define the finite difference schemes at the interface grid points with smaller time step by explicit schemes , and the prior error estimates for the numerical solutions are obtained
在第四章，我们发展了一些新技术，在子区域的边界处采用小时间步长古典显式格式求解，构造了新的区域分解算法，得到了差分解的先验误差估计。