فهرست مقالات Nonlinear multi-terms differential equations دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - A Novel Shifted Jacobi Operational Matrix for Solution of Nonlinear Fractional Variable-Order Differential Equation with Proportional Delays H. R. Khodabandelo E. Shivanian S. Abbasbandy 10.30495/ijim.2022.64043.1555