On a type of matrix splitting preconditioners for a class of block two-by-two linear systems. - Shan-Mou Cao; Wei Feng; Zeng-Qi Wang (Appl. Math. Lett., 2018)

PMHSS iteration method and preconditioners for Stokes control PDE-constrained optimization problems. - Shan-Mou Cao; Zeng-Qi Wang (Numer. Algorithms, 2021)