Ulam-Hyers stability analysis for hybrid φ-Caputo time-fractional systems of order δ in (1; 2]. Gulf Journal of Mathematics, [S. l.], v. 18, n. 1, p. 95–117, 2024. DOI: 10.56947/gjom.v18i1.2313. Disponível em: https://gjom.org/index.php/gjom/article/view/2313. Acesso em: 24 aug. 2026.