摘要
主要研究非线性时滞高阶函数方程x(t-τ)=P(t)x(t)+∑m i=1Qi(t)∏sj=1|x(t-(kj+i)τ)|aj signx(t-(kj+i)τ)的解的振动性,利用迭代法,得到该方程解振动的若干个充分条件。
In this paper, we study oscillation of nonlinear delay functional equation of higher order with variable coefficient of the fromx(t-τ)=P(t)z(t)+^m∑i=1Qi(t)^s∏j=1|x(t-(κj+i)τ)|^aj signx(t-(t-(κj+i)τ) sign. Some sufficient conditions of the continuous arguments i=1 j=l are obtained by the iterative method
出处
《广东石油化工学院学报》
2013年第1期55-57,90,共4页
Journal of Guangdong University of Petrochemical Technology
关键词
函数方程
非线性
变系数
振动准则
functional equations
nonlinear
variable coefficient
oscillation criteria.