摘要
运用微分不等式理论 ,结合上下解方法 ,借助变形函数 ,得到了四阶微分方程具一般非线性边界条件的两点边值问题的解的存在性定理 .
Using the theory of differential inequalities, the method of upper and lower solutions and appropriate modified functions, this paper presents the existence theorems of solutions of general nonlinear two point BVP for fourth order nonlinear differential equations.
出处
《徐州师范大学学报(自然科学版)》
CAS
2001年第2期1-5,共5页
Journal of Xuzhou Normal University(Natural Science Edition)