摘要
研究一类具有变系数和变滞量的二阶非线性中立型微分方程,通过对方程解的性态的讨论,建立了方程的所有有界解振动的充分条件,该条件是“sharp”的.
in this paper a kind of second order nonlinear neutral differential equations with variable coefficients and variable delays is studied.By discussing the properties of solutions of the equations,sufficient conditions are established for all bounded solutions of the equations to be oscillatory and the conditions are 'sharp'.
出处
《广西师范大学学报(自然科学版)》
CAS
1994年第2期26-29,共4页
Journal of Guangxi Normal University:Natural Science Edition
基金
河南省高等学校青年科学基金
关键词
解
中立型
泛函微分方程
振动性
neutral equation
bounded solution
oscillation