Damag, F.H., Alshammari, M. , Saif, A., Kiliçman, A., Othman, H.A. and Dawood, S. 2026. On the Quaternion-Valued Fractional Differential Equation with Hyers-Ulam Stability. Contemporary Mathematics . 7, 3 (Apr. 2026), 2904–2928. DOI:https://doi.org/10.37256/cm.7320268899.