摘要
考虑一阶非线性变时滞微分方程x(′t)=f(t,x(τ(t))),利用其线性近似方程x(′t)=D2f(t,0)x(τ(t))的振动性,给出了方程解振动的一个充分条件,所得结果推广了相关文献的结果.
Consider the nonlinear differential equation with variable delay x′(t)=f(t,x(τ(t))). By using the oscillation of its linearized equation x′(t)=D2f(t,0)x(τ(t)), a sufficient condition for oscillation of the equation is obtained, which generalized the corresponding result of [Applied Mathematics Letters, 2006,19,320-325].
出处
《数学的实践与认识》
CSCD
北大核心
2009年第17期223-226,共4页
Mathematics in Practice and Theory
基金
山西省自然科学基金(2007011001)
大同大学基金(2008k5)
关键词
时滞微分方程
弱递推函数
振动性
delay differential equation
weakly recurrent function
oscillation