ZOHRA FARNANA; THURAYA RKHAYES. Weak Derivatives and Their Role in the Construction of Sobolev Spaces. African Journal of Advanced Pure and Applied Sciences , [S. l.], v. 5, n. 3, p. 216–229, 2026. Disponível em: https://aaasjournals.com/index.php/ajapas/article/view/2127. Acesso em: 13 aug. 2026.