基于高阶振荡微分方程解的特性分析,本文给出了一类渐近级数方法逼近方程的解.相比于传统的时间步长方法,该算法具有很高的计算精度,且其计算量与高振荡因子无关.数值实验证明了方法的有效性.
Based on the property of the solution of higher order differential equation, an asymptotic series method is presented to approximate the solution. Compared to the traditional time stepping method, this method is more accurate for higher order oscillatory differential equation regardless of the rate of oscillations. Numerical experiments are provided to illustrate the effectiveness of the algorithm.