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On the UPSS method for non-Hermitian singular saddle point problems
Jing Zhang,Shu-Xin Miao
Keywords:Singular saddle-point problem, UPSS method, Semi-convergence
      Recently, a new Uzawa-type method, referred as the UPSS method, is proposed for solving the non-Hermitian nonsingular saddle point problems, see Dou, Yang and Wu (2017). In this paper, we give the semi-convergence analysis of the UPSS method when it is used to solve non-Hermitian singular saddle point problems. An example is given to verify the effectiveness of this method for solving non-Hermitian singular saddle point problems.