一类带滞量微分方程解的表达式

Expression of Solution of Some Differential Equation with Delay

利用复函数方法讨论了方程anx(n)(t)+an-1x(n-1)(t)+…+a0x(t)+bx(t-τ)=tkcosαt anx(n)(t)+an-1x(n-1)(t)+…+a0x(t)+bx(t-τ)=tksinαt的解的一些表达式,获得了更一般的结果。

By using the method of complex function, the expression of solution of some differential equations is discussed.anx^（n）（t）＋an-1x（n-1）（t）＋…＋a0x（t）bx（t-τ）=t^kcosαt anx^（n）（t）＋an-1x（n-1）（t）＋…＋a0x（t）bx（t-τ）=t^ksinαt and some general results are obtained.