Approximating and Preconditioning the Stiffness Matrix in the GoFD Approximation of the Fractional Laplacian. Communications in Computational Physics, [S. l.], v. 37, n. 1, p. 1–29, 2025. DOI: 10.4208/cicp.OA-2024-0079. Disponível em: https://global-sci.com/index.php/cicp/article/view/17085. Acesso em: 6 dec. 2025.