摘要
利用Leggett-Williams不动点定理,研究了一类三阶三点脉冲边值问题多个正解的存在性.首先给出了其3个正解的存在性,进一步还给出了2n-1个正解的存在性.最后给出了一个例子.主要结果改进、推广了GuoLJ(2007)和LiuY(2009)的一些结果.
In this paper,we investigate a class of boundary problems for third-order three-point nonlinear impulsive differential equations by using cone theory and Leggett-Williams fixed point theory.First,we establish the existence of at least three positive solutions.And then,we prove the existence of at least 2n-1 positive solutions for arbitrary integer n.Finally,an example is given to demonstrate main the results of this paper.Main results of this paper extend and improve some results in papers Guo L J(2007) and Liu Y(2009).
出处
《曲阜师范大学学报(自然科学版)》
CAS
2010年第4期29-35,共7页
Journal of Qufu Normal University(Natural Science)
基金
国家自然科学基金(10771117)
教育部博士学科点专项科研基金(20093705120002)
中国博士后科学基金(20090451290)
山东省自然科学基金(Y2008A24)
山东省博士后创新项目专项资金(200801001)
曲阜师范大学博士科研启动(Bsqd07026)项目
关键词
边值问题
脉冲
多解
不动点
boundary value problem
impulsive
multiple solutions
fixed point