摘要
利用上下解理论研究了两类四阶非线性方程两点边值问题解的存在性。
Studies the existence for two-point boundary value problems of two fourth-order nonlinear equations by using the theories of upper and lower solutions.
出处
《大连铁道学院学报》
1993年第2期1-5,共5页
Journal of Dalian Railway Institute
关键词
非线性方程
两点边值问题
存在性
non-linear equations
two-point boundary value problem
exsitence
