Optimal Error Estimate of Fourier Spectral Method for the Kawahara Equation. Journal of Mathematical Study, [S. l.], v. 50, n. 3, p. 291–306, 2017. DOI: 10.4208/jms.v50n3.17.06. Disponível em: https://global-sci.com/index.php/jms/article/view/13305. Acesso em: 6 dec. 2025.