周口师范学院学报
週口師範學院學報
주구사범학원학보
Journal of Zhoukou Normal University
2013年
5期
20~24
,共null页
单调迭代法 增算子 周期边值问题 正解 存在性
單調迭代法 增算子 週期邊值問題 正解 存在性
단조질대법 증산자 주기변치문제 정해 존재성
monotone iteration method; periodic boundary value problem; positive solution; existence
建立了有序Banach空间中非凸闭集上增算子的单调迭代法.利用这个方法考察了非线性二阶周期边值问题u"(t)+ku(t)=f(t,u(t)),O≤t≤2π,u(0)=u(2π),u'(2π)的正解存在性和迭代法,其中允许f(t,0)≡0或者limf(t,u)≡±∞,因此该问题可以为排斥的或者吸引的.
建立瞭有序Banach空間中非凸閉集上增算子的單調迭代法.利用這箇方法攷察瞭非線性二階週期邊值問題u"(t)+ku(t)=f(t,u(t)),O≤t≤2π,u(0)=u(2π),u'(2π)的正解存在性和迭代法,其中允許f(t,0)≡0或者limf(t,u)≡±∞,因此該問題可以為排斥的或者吸引的.
건립료유서Banach공간중비철폐집상증산자적단조질대법.이용저개방법고찰료비선성이계주기변치문제u"(t)+ku(t)=f(t,u(t)),O≤t≤2π,u(0)=u(2π),u'(2π)적정해존재성화질대법,기중윤허f(t,0)≡0혹자limf(t,u)≡±∞,인차해문제가이위배척적혹자흡인적.
In this paper, the monotone iteration method on the nonconvex closed set is esta-blished. By applying the method the existence and iterative method of positive solution is considered for the nonlinear second-order periodic boundary value problemu'(t)+ku(t)=f(t,u(t)),O≤t≤2π,u(0)=u(2π),u'(2π).The problem allowsf(t,0)≡0 or limf(t,u)≡±∞,Therefore, the problem may be repulsive or attractive.