HuangTing-Zhu, and WuChi-Yе. “Perturbation and Error Analyses of Partitioned LU factorization for Block Tridiagonal Linear Systems”. Ukrains’kyi Matematychnyi Zhurnal 68, no. 12 (December 25, 2016): 1683-1695. Accessed December 22, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/1953.