On Polynomial PMLs for Helmholtz Scattering Problems with High Wave-Numbers. Journal of Computational Mathematics, [S. l.], v. 43, n. 6, p. 1469–1487, 2025. DOI: 10.4208/jcm.2510-m2025-0072. Disponível em: https://global-sci.com/index.php/JCM/article/view/23109. Acesso em: 6 dec. 2025.