一类非线性二阶四点边值问题解的存在性

摘要

运用上下解方法和Leray-Schauder度理论,讨论了一类非线性二阶四点边值问题解的存在性,推广了已有的结果.%The existence of solutions for a class of nonlinear second-order four point boundary value problems is discussed by using the upper and lower solutions method and Leray-Schauder degree theory.The existing results are generalized.