nonlinear third-order ordinary differential equations 非线性三阶常微分方程
third-order nonlinear differential equations 三阶非线性微分方程
third order nonlinear differential equations 三阶非线性常微分方程
This paper approaches with the problem of stable area in ordinary nonlinear third-order differential equations, which appears during the operating process of the series motor.
本文研究串激电机运行中出现的三阶非线性常微分方程的稳定域问题。
This paper deals with the problems on the existence and uniqueness of bounded solutions and almost periodic solution for third order nonlinear differential equations with time lag.
研究具时滞的三阶非线性微分方程，利用变量替换和不动点方法，得到了此方程有界解和概周期解的存在性及唯一性结果。
Use the method of boundary layer functions to study the singularly perturbed boundary value problem for a kind of third order nonlinear differential equations.
利用边界层函数法研究了一类非线性三阶微分方程的奇摄动边值问题。
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