摘要
利用常数变易法,构建了二阶非齐次微分方程-u″(t)+ρ2 u(t)=f(t,u(t)),t∈J,在ρ=0和ρ>0这两种情形下及相应边值条件下的格林函数,并给出了其等价的积分方程.
Utilizing the variation of constants ,under the cases ρ=0 andρ>0 ,Green functions to the second‐order nonhomogeneous differential equations ‐u″(t)+ρ^2 u(t)= f (t ,u(t)) ,t∈ J with different boundary value conditions are established ,and then the equivalence of solutions is given in this paper .
出处
《合肥学院学报(自然科学版)》
2014年第4期7-9,20,共4页
Journal of Hefei University :Natural Sciences
关键词
微分方程
边值问题
格林函数
differential equations
boundary value problem
Green functions