Homotopy perturbation method with rank upgrading technique for the superior nonlinear oscillation. - Yusry O. El-Dib (Math. Comput. Simul., 2021)

The damping Helmholtz-Rayleigh-Duffing oscillator with the non-perturbative approach. - Yusry O. El-Dib (Math. Comput. Simul., 2022)

An efficient approach to converting the damping fractal models to the traditional system. - Yusry O. El-Dib; Nasser S. Elgazery (Commun. Nonlinear Sci. Numer. Simul., 2023)

An innovative efficient approach to solving damped Mathieu-Duffing equation with the non-perturbative technique. - Yusry O. El-Dib (Commun. Nonlinear Sci. Numer. Simul., 2024)