A note on the iterative algorithm for large sparse saddle point problems

In this paper, we discuss some more generalized iterative schemes for solving the large sparse saddle point problems proposed by Ling and Hu [X.F. Ling, X.Z. Hu, On the iterative algorithm for large sparse saddle point problems, Appl. Math. Comput. 178 (2006) 372–379.], and apply the preconditioned GMRES to accelerate the convergence. Numerical experiments are reported that show the effectiveness of the proposed methods.