A block upper triangular preconditioner with two parameters for saddle-point problems

XY Xiao, CS Wang - Computers & Mathematics with Applications, 2024 - Elsevier
In this paper, a simple preconditioner with two parameters (SPTP) is introduced for solving a
class of saddle-point problems. The SPTP preconditioner is block upper triangular and does …

King-NSS iteration method for solving a class of large sparse nonlinear systems

Y Zhang, Q Wu, P Dai, Y Xiao - Journal of Applied Mathematics and …, 2022 - Springer
In order to seek the numerical solution of large sparse nonlinear systems with positive
definite Jacobian matrix, treating the normal and skew-Hermitian splitting (NSS) method (Bai …

A New Efficient Preconditioner For Saddle-Point Problems

XY Xiao, CS Wang - Available at SSRN 4458005 - papers.ssrn.com
In this paper, a new simple preconditioner with two parameters (SPTP) is introduced for
solving a class of saddle-point problems. The SPTP preconditioner does not contain the …