A Note on Parameterized Preconditioned Method for Singular Saddle Point Problems
Yueyan Lv, Naimin Zhang · Journal of Applied Mathematics and Physics · 2016
Recently, some authors (Li, Yang and Wu, 2014) studied the parameterized preconditioned HSS (PPHSS) method for solving saddle point problems. In this short note, we further discuss the PPHSS method for solving singular saddle point problems. We prove the semi-convergence of the PPHSS method under some conditions. Numerical experiments are given to illustrate the efficiency of the method with appropriate parameters.