An Augmented Lagrangian Uzawa Iterative Method for Solving Double Saddle-Point Systems with Semidefinite (2,2) Block and Its Application to DLM/FD Method for Elliptic Interface Problems. Commun. Comput. Phys. [Internet]. 2021 Apr. 30 [cited 2026 Mar. 15];30(1):124-43. Available from: https://gsp.tricubic.dev/cicp/article/view/6971