摘要
本文建立了某些非线性四阶和五阶微分方程的不稳定性的充分条件.
In present paper certain instability theorems for some nonlinear differentialequations of fourth and fifth order are established.
出处
《新疆大学学报(自然科学版)》
CAS
1990年第2期7-10,共4页
Journal of Xinjiang University(Natural Science Edition)
关键词
微分方程
不稳定性
零解
fourth and fifth order differential equations
instability
Liapunov's Funetion