广义鞍点问题的块对角预条件子

Block Diagonal Pre-conditioners for Generalized Saddle Point Problems

研究了广义鞍点问题新的块预条件子,给出了预处理后矩阵特征值的一些性质.数值例子表明,新的预条件子是非常有效的.

In this paper, we consider block diagonal preconditioners for solving saddle point linear systems; we show properties of eigenvalues of the preconditioned matrix. Finally, numerical experiments are also reported for illustrating the efficiency of the presented preconditioners.