Initial Value Problem for Mixed Differential Equations of Variable Order with Finite Delay. - Souad Guedim; Amar Benkerrouche; Kanokwan Sitthithakerngkiet; Mohammed Said Souid; Abdelkader Amara (Symmetry, 2025)

Solvability of Boundary Value Problems for Differential Equations Combining Ordinary and Fractional Derivatives of Non-Autonomous Variable Order. - Mohammed Said Souid; Amar Benkerrouche; Souad Guedim; Sandra Pinelas; Abdelkader Amara (Symmetry, 2025)