Semi-discretization Difference Approximation for a Cauchy Problem of Heat Equation in Two-dimensional Space. Journal of Partial Differential Equations, [S. l.], v. 28, n. 4, p. 315–331, 2020. DOI: 10.4208/jpde.v28.n4.3. Disponível em: https://global-sci.com/index.php/jpde/article/view/14917. Acesso em: 5 dec. 2025.