List of Articles Riccati differential equation Open Access Article Abstract Page Full-Text 1 - Solving linear and nonlinear optimal control problem using modified adomian decomposition method Ahmad Fakharian Mohammad Taghi Hamidi Beheshti Open Access Article Abstract Page Full-Text 2 - On a modication of the Chebyshev collocation method for solving fractional diffiusion equation Hosein jalebbonab Hojatollah Adibi