Periodic, Quasi-Periodic, and Chaotic Motions to Diagnose a Crack on a Horizontally Supported Nonlinear Rotor System. - Nasser A. Saeed; Mohamed Said Mohamed; Sayed K. Elagan (Symmetry, 2020)

Time-Delayed Nonlinear Integral Resonant Controller to Eliminate the Nonlinear Oscillations of a Parametrically Excited System. - Nasser A. Saeed; Galal M. Moatimid; Fawzy M. Elsabaa; Yomna Y. Ellabban; Sayed K. Elagan; Mohamed Said Mohamed (IEEE Access, 2021)

New Results for Oscillation of Solutions of Odd-Order Neutral Differential Equations. - Clemente Cesarano; Osama Moaaz; Belgees Qaraad; Nawal A. Alshehri; Sayed K. Elagan; Mohammed Zakarya (Symmetry, 2021)

Linear and Nonlinear Electrostatic Excitations and Their Stability in a Nonextensive Anisotropic Magnetoplasma. - Muhammad Khalid; Ata-ur-Rahman; Ali A. Al-Thobaiti; Sayed K. Elagan; Sadah A. Alkhateeb; Ebtehal A. Elghmaz; Samir A. El-Tantawy (Symmetry, 2021)

Bright-Dark Soliton Waves' Dynamics in Pseudo Spherical Surfaces through the Nonlinear Kaup-Kupershmidt Equation. - Mostafa M. A. Khater; Lanre Akinyemi; Sayed K. Elagan; Mohammed A. El-Shorbagy; Suleman H. Alfalqi; Jameel F. Alzaidi; Nawal A. Alshehri (Symmetry, 2021)