节点文献
有阻尼的二阶微分方程的周期解
The Periodic Solutions for Second Order Equations with Damping
【摘要】 本文利用相平面分析法,得到同伦方程的可能周期解的先验界,由拓扑度中的延拓定理得到了周期解存在的充分条件,得到了新的结果.
【Abstract】 In this paper,we have gained priori bounds of periodic solutions based on the phase-plane analysis;we get the condition about the existence of periodic solutions by continuation theorem of the topological degree theory,here we have obtained some new conclusions.
【关键词】 周期解;
先验界;
延拓定理;
拓扑度;
【Key words】 Periodic solution; Priori bounds; Continuation theorem; Topological degree;
【Key words】 Periodic solution; Priori bounds; Continuation theorem; Topological degree;
【基金】 国家自然科学基金项目(No.11271277/A010702)
- 【文献出处】 生物数学学报 ,Journal of Biomathematics , 编辑部邮箱 ,2015年02期
- 【分类号】O175
- 【下载频次】97