一类带滞量微分方程解的表达式的研究

On Expressions of Solution of Some Differential Equations 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=eαttkcosβt,anx(n)(t)+an-1x(n-1)(t)+…+a0x(t)+bx(t-τ)=eαttksintβ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^（t）＋an-1x^（n-1）（t）＋…＋a0x（t）＋bx（t-τ）=e^at t^kcosβt,anx^（t）＋an-1x^（n-1）（t）＋…＋a0x（t）＋bx（t-τ）=e^at t^ksinβt,and some general results than paper [1] are obtained.