Electron. J. Differential Equations, Vol. 2026 (2026), No. 07, pp. 1-14.

Finite-time stability for fuzzy fractional delay differential equations with generalized Caputo derivatives

Khadija Elhakimy, Ismail Sadouki, Ali El Mfadel, Said Melliani

Abstract:
This work is devoted to the analysis of fuzzy fractional delay differential equations (FDDEs) governed by the generalized Caputo fractional derivative (GCFD). By combining stepwise approximation methods with suitable Gronwall-type inequalities, we establish the existence and uniqueness of solutions. Furthermore, we derive explicit criteria that guarantee the finite-time stability. The theoretical contributions are illustrated with numerical simulations, confirm the analytical findings and demonstrate the effectiveness of the proposed framework in capturing the dynamical behavior of fuzzy fractional delay models.

Submitted September 15, 2025. Published January 19, 2026.
Math Subject Classifications: 26A33, 37C75, 34A08, 93D40.
Key Words: Fuzzy fractional differential equations; Riemann-Liouville derivative; generalized Caputo fractional derivative; finite-time stability.
DOI: 10.58997/ejde.2026.07

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Khadija Elhakimy
Sultan Moulay Slimane University
Laboratory of Applied Mathematics and Scientific Computing
Beni Mellal, Morocco
email: elhakimy.khadija@usms.ac.ma
Ismail Sadouki
Sultan Moulay Slimane University
Laboratory of Applied Mathematics and Scientific Computing
Beni Mellal, Morocco
email: ismail.sadouki@usms.ma
Ali El Mfadel
Sultan Moulay Slimane University
Laboratory of Applied Mathematics and Scientific Computing
Beni Mellal, Morocco
email: a.elmfadel@usms.ma
Said Melliani
Sultan Moulay Slimane University
Laboratory of Applied Mathematics and Scientific Computing
Beni Mellal, Morocco
email: s.melliani@usms.ma

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