摘要
给出了一种简便易行的未知函数变换 ,利用它可使变系数线性非齐次微分方程的求解问题转化为求其对应特征方程的常数解的 (代数 )
In this paper, a simple and convenient unknown function transformation is given, by which pursuiting the solution of linear nonhomogeneous differential equations with variable coefficients can be transferred into an algebraic problem of pursuting the constant solution of its corresponding characteristic equation.
出处
《四川师范大学学报（自然科学版）》
CAS
CSCD
2002年第2期149-150,共2页
Journal of Sichuan Normal University（Natural Science）
关键词
变系数线性非齐次方程
特征方程
常数解
函数变换
降阶
求解方法
变系数线性微分方程
Linear nonhomogeneous differential equations with variable coefficients
Constant solution of characteristic equation
Transformation
Decreasing order
