陈红斌,虞烈,袁小阳.关于Duffing方程周期解的存在与唯一性[J].数学研究及应用,2002,22(4):615~620 |
关于Duffing方程周期解的存在与唯一性 |
On the Existence and Uniqueness of Periodic Solutionof Duffing's Equation |
投稿时间:1999-11-29 |
DOI:10.3770/j.issn:1000-341X.2002.04.019 |
中文关键词: Duffing方程 周期解 重合度 |
英文关键词:Duffing's equation Periodic solution Coincidence degree. |
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中文摘要: |
考虑微分方程x + g(x)=p(t),其中 g(x)∈ C1(R),p(t)∈ C(R)为 2π周期函数,本文在假设g′(x)<0条件下,完整地给出周期解的存在唯一性的充分与必要性条件,并在g′(x)≤a<1时给出周期解的存在性结果. |
英文摘要: |
Consider the Duffing's equation x+g(x)=p(t) where g ∈ C1(R) and p(t)∈ C(R) is a 2π- periodic, with g(x) statisfying condition g′ (x) < 0 , the necessary and sufficient conditions to ensure the existence and uniqueness of 2π- periodic solution of Duffing equation are obtained by means of coincidence degree. |
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