Improved splitting preconditioner for double saddle point problems arising from liquid crystal director modeling. - Bi-Cong Ren; Fang Chen; Xiao-Liang Wang (Numer. Algorithms, 2022)

On preconditioning of double saddle point linear systems arising from liquid crystal director modeling. - Fang Chen; Bi-Cong Ren (Appl. Math. Lett., 2023)