Existence results for some fourth-order
โ
Huihui Pang; Weigao Ge
๐
Article
๐
2009
๐
Elsevier Science
๐
English
โ 419 KB
In this paper, we consider the following fourth-order multi-point boundary value problem where nonlinear f is depending on all lower-order derivatives of u. By using the method of upper and lower solutions and Schauder's fixed point theorem, existence result is obtained.