The limit cycles for type equation of quadratic differential systems 類方程的極限環(huán)
The bifurcation problems of type equation of quadratic differential systems 類方程的分支問題
Bifurcation problem of a quadratic differential system with distribution of lc ' s 分布的二次微分系統(tǒng)的分支問題
A note on existence of limit cycles of type equation of quadratic differential systems 類二次系統(tǒng)極限環(huán)的惟一性
The almost periodic solution to quadratic differential equations with almost periodic coefficients 二次概周期系數(shù)微分方程的概周期解
Solutions of three new second - order quadratic differential equations and their general solution formula 新三類二階二次微分方程的解法及其通解公式
By using the method of qualitative analysis , phase portraits for a class of quadratic differential system are investigated . nine phase portraits are found and shown for this system 用定性理論方法研究了一類二次微分系統(tǒng)的相圖,得出該類系統(tǒng)的相圖共有9種,并且給出了這9種相圖
Third , this thesis thoroughly had also studied the three - dimensional differential game guidance law . the first - order differential game guidance law expression was inferred based on the linear quadratic differential game theory , the simulation results showed that this differential game guidance law is correct and effective 接下來,本文還深入研究了三維微分對策制導律,在線性二次型微分對策理論的基礎上推導出一階延遲環(huán)節(jié)三維微分對策制導律表達式并通過仿真計算得到驗證。
百科解釋
In mathematics, a quadratic differential on a Riemann surface is a section of the symmetric square of the holomorphic cotangent bundle.