本文利用Leray—Schauder度理论,上下解方法及微分不等式方法等,在较弱的Nagumo条件下得到了一类n阶非线性两点边值问题解的存在性与唯一性结果,并给出了应用举例.
By using Upper and Lower solutions method, Leray-Schauder degree theory and Differential inequality method, we establish the existence and uniqueness theorems for a kind of nth-order nonlinear two-point boundary value problems with weaker Nagumo condition, and we give an example to demmonstrate our results.