摘要
本文讨论一类一阶中立型时滞微分方程的振动性,建立了此类方程一切解振动的几族充分条件,作为其推论的结果改进了文[1],[2],[3]的相应定理。
In tkis paper. we consider certain first order delay differential equations of neutraltype. and obtian several classes of sufficient conditions for the oscillation of all of its solutions. As corollaries to our resnlts. the corresponding theorems in[1] ,[2],[3]are improved.
出处
《数学学报(中文版)》
SCIE
CSCD
北大核心
1994年第1期129-134,共6页
Acta Mathematica Sinica:Chinese Series
基金
国家自然科学基金
关键词
时滞微分方程
振动性
中立型
delay differential equation. oscillation. neutral type. positive solution