摘 要:
用Krasnoselskii不动点定理研究了变系数二阶奇异非线性常微分方程u″(t)+a(t)u(t)=f(t,u(t)),在更一般的条件下获得了该微分方程的正ω-周期解的存在性和多重性结果.[著者文摘]
关 键 词:
文章出处:
《甘肃科学学报》-2007年19卷4期 -4-7页
Journal of Gansu Sciences
分 类 号:
文献标识码:
A
文章编号:
1004-0366(2007)04-0004-04
[参考文献]
Positive Solutions of Periodic Boundary Value Problems for Second-Order Singular Nonlinear Differential Equations
YANG He (College of Mathematics and Information Science, Northwest Normal University, Lanzhou 730070, China)
Abstract:
The existence of positive ential equation u″(t)+a(t)u(t) = f periodic solution for a second order singular nonlinear ordinary differ (t,u(t))is disc cone map, some existence and multiplicity result of ussed. By using Krasnoselskii fixed point theorem of periodic solutions are obtained.[著者文摘]
Key words:
positive periodic solutions; Krasnoselskii fixed point theorem; existence; multiplicity
收稿日期: 2006-12-18
基金资助:
甘肃省自然科学基金项目(3ZS012-B25-016)

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