TY - JOUR T1 - Finding Periodic Solutions of High Order Duffing Equations via Homotopy Method AU - Yang , Xue AU - Xu , Xu JO - Communications in Mathematical Research VL - 3 SP - 193 EP - 203 PY - 2021 DA - 2021/07 SN - 25 DO - http://doi.org/ UR - https://global-sci.org/intro/article_detail/cmr/19326.html KW - high order Duffing equation, periodic solution, homotopy method. AB -

This paper presents a detailed analysis of finding the periodic solutions for the high order Duffing equation $$x^{(2n)} + g(x) = e(t)   (n≥1).$$Firstly, we give a constructive proof for the existence of periodic solutions via the homotopy method. Then we establish an efficient and global convergence method to find periodic solutions numerically.