Emin, A., Abdelkawy, M. A., & Biswas, . A. (2026). Efficient Spectral Collocation Schemes for Nonlinear <i>ψ</i>-Caputo Fractional Riccati Differential Equations with Variable-Order. Contemporary Mathematics, 7(3), 3165–3183. https://doi.org/10.37256/cm.7320267646