Parallel Hierarchical Matrix Preconditioners for the Curl-Curl Operator. Journal of Computational Mathematics, [S. l.], v. 27, n. 5, p. 624–641, 2018. DOI: 10.4208/jcm.2009.27.5.014. Disponível em: https://www.global-sci.com/index.php/JCM/article/view/11956. Acesso em: 5 dec. 2025.