摘要
主要解决特征重根型的变系数线性非齐次微分方程的两个问题：其一，推广常系数线性非齐次方程的降阶原理；其二，该类方程可在预先不知道任何解的前提下求其方程的特解，也可求出通解．
This article has mainly solved two problems about a kind of nonhomogeneous differential equation with variable coefficients:(1)It extended the derogatory principle of nonhomogeneous linear equation with constant coefficients. (2)The general solution and special solution can be obtained under the condition that no solution is known.
出处
《沈阳化工学院学报》
1999年第4期301-304,共4页
Journal of Shenyang Institute of Chemical Technolgy
关键词
线性微分方程
特征重根型
微分方程
解
linear differential equation
\ characteristic root
\ special solution
\ general solution
