摘要
考虑了具偏差变元的一阶中立型微分方程的非振动解的渐近性 ,解决了GramMatikopoulos等提出的 1个猜想 .
The asymptotic behavior of nonoscillatory solution of neutral differential equations with deviating arguments is considered,and a conjecture suggested by Grammatikopoulos M K et al is proved.
关键词
非振解
最终正解
中立型微分方程
单调性
渐近性
nonoscillatory solution
eventually positive solution
neutral differential equation
