Existence of extremal solutions for mixed nonlinear fractional differential equations with p-Laplacian. Gulf Journal of Mathematics, [S. l.], v. 20, n. 2, p. 474–488, 2025. DOI: 10.56947/gjom.v20i2.3262. Disponível em: https://gjom.org/index.php/gjom/article/view/3262. Acesso em: 13 oct. 2026.