Explicit collocation algorithm for the nonlinear fractional Duffing equation via third-kind Chebyshev polynomials

Iranian Journal of Numerical Analysis and Optimization

مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 15 دی 1403

نوع مقاله: Research Article

شناسه دیجیتال (DOI): 10.22067/ijnao.2025.90483.1543

نویسندگان

Youssri Hassan Youssri^{* 1}؛ Ahmed Gamal Atta²؛ Mohamed Orabi Moustafa³؛ Ziad Yousef Abu Waar⁴

¹Department of Mathematics, Faculty of Science, Cairo University, Giza 12613, Egypt.

²Department of Mathematics, Faculty of Education, Ain Shams University, Roxy, Cairo 11341, Egypt.

³Department of Physics, School of Science and Engineering, The American University in Cairo (AUC), New Cairo 11835, Egypt.

⁴Department of Physics, College of Science, The University of Jordan, Amman, 11942, Jordan.

چکیده

Herein, we propose an accurate algorithm to approximate the solution of the nonlinear fractional-order Duffing equation (NFDE). The algorithm is based on using shifted Chebyshev polynomials of the third-kind (SCP3K) as basis functions and the spectral collocation method as a solver, we studied the error analysis of the method in-depth, and we exhibited some numerical test problems to check the applicability of the method, also we compared with other existing techniques to show the superiority of our proposed numerical scheme. Our results show that the method employed provides a useful tool to simulate the solution of the NFDE. The main advantages of the proposed method are that it doesn't require a huge number of retained modes, simply a few terms, and doesn't exhaust the machine used to render the codes.

کلیدواژه‌ها

Chebyshev polynomials؛ Spectral methods؛ Nonlinear fractional-order Duffing equation؛ Convergence analysis