四维齐次线性滞后型微分方程点态退化的充分条件

On The Sufficient Conditions of Pointwise Degeneracy for Four Dimentional Delay Differential Equations

本文给出了四维齐次线性滞后型微分方程点态退化的充分条件的代数判定,它直接通过方程组的系数来麦示,比前人的有关结果更便于应用。

For four dimentional Delay Diffeential Equation,we give out the algebaic criterion on the sufficient condition of pointwise degeneracy by the coefficient of the system.