二阶多时滞非线性微分方程的周期解  

PERIODIC SOLUTIONS FOR NONLINEAR SECOND ORDER ORDINARY DIFFERENTIAL EQUATIONS WITH TIME DELAYS

作　　者：张保生[1] 

机构地区：[1]云南民族学院数学系,昆明650031

出　　处：《纯粹数学与应用数学》1998年第4期62-66,共5页Pure and Applied Mathematics

摘　　要：研究二阶变系数非线性多时滞微分方程ω周期解的存在性,得到了ω周期解存在的充分条件。In this paper, Existence of ω-periodic solutions of second order nonlinear ordinary differential equations with time-variable coefficients and delays is studied. Some sufficient conditions of existence of ω-periodic solutions of the equation are obtained.

关 键 词：中立型方程 周期解 非线性项 微分方程 非线性 

分 类 号：O175.14[理学—数学]