weakly nonlinear differential equation meaning in Chinese

弱非线性微分方程

Abstract : in this paper , the authors study the initial value problems of a class of weakly nonlinear differential equation . the first and the second order approximate solutions are obtained . their accuracies are high and the more the approximate order is high , the more the accuracy is high . if the regular perturbation method is used to solve the same problems , then , when the independent variable is big , so is the error of the solution
文摘:用插值摄动法1研究一类弱非线性常微分方程的初值问题，得到了一级及二级近似解.解的精度很高，并逐级提高.如果用正则摄动法求解此类问题，则当自变量较大时，误差很大