Analysis of positive solutions for the fractional derivative with delay and integral boundary conditions. Gulf Journal of Mathematics, [S. l.], v. 19, n. 2, p. 315–327, 2025. DOI: 10.56947/gjom.v19i2.2745. Disponível em: https://www.gjom.org/index.php/gjom/article/view/2745. Acesso em: 19 aug. 2026.