$ℓ^1$-Error Estimates on the Hamiltonian-Preserving Scheme for the Liouville Equation with Piecewise Constant Potentials: A Simple Proof. Journal of Computational Mathematics, [S. l.], v. 35, n. 6, p. 814–827, 2021. DOI: 10.4208/jcm.1701-m2016-0717. Disponível em: https://global-sci.com/index.php/JCM/article/view/12297. Acesso em: 5 dec. 2025.