摘要
利用锥上的不动点定理,给出了非线性二阶三点边值问题解和多解的存在性定理.其中允许非线性项有一个负的下界.
By using a fixed point theorem in cones,the existence of solutions and multiple solutions is considered for a nonlinear second-order three-point boundary value problem where nonlinear term is allowed to have a negative loeer bound.
出处
《数学的实践与认识》
CSCD
北大核心
2011年第1期159-165,共7页
Mathematics in Practice and Theory
关键词
三点边值问题
半正非线性
不动点定理
three-point boundary value problem
semipositone nonlineaxity
fixed point theorem