将上下解方法和Leray-Shauder度应用到一类含有非线性边界条件的n阶微分方程,得到了至少存在一个解的结果,并且改进和推广了文献中的某些结果.
By applying the method of the upper and lower solutions and the Leray- Shauder degree to the nth-order differential equations with nonlinear boundary conditions, a result that it has at least one solution is obtained; therefore, some previous results in the reference papers are improved and generalized.