一类三阶时滞Duffing型方程周期解的存在唯一性 |
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引用本文: | 沈钦锐,周宗福.一类三阶时滞Duffing型方程周期解的存在唯一性[J].厦门水产学院学报,2012(2):142-146. |
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作者姓名: | 沈钦锐 周宗福 |
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作者单位: | 安徽大学数学科学学院,安徽合肥230039 |
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基金项目: | 国家自然科学基金资助项目(11071001); 安徽省教育厅重点基金资助项目(KJ2009A005Z); 高校博士点专项科研基金资助项目(20093401110001); 安徽大学学术创新团队基金资助项目(KJTD002B) |
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摘 要: | 利用重合度理论,研究一类三阶时滞Duffing泛函微分方程x(t)+∑2i=1aix(i)(t)+bix(i)(t-τi)]+cx(t)+g1(t,x(t))+g2(t,x(t-τ(t)))=e(t)的T-周期解问题,获得了该方程T-周期解存在性和唯一性的若干新结果.
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关 键 词: | 三阶泛函微分方程 周期解 重合度 |
Existence and Uniqueness of Periodic Solution for a Third Order Duffing Equation with Delay |
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Authors: | SHEN Qin-rui ZHOU Zong-fu |
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Institution: | (School of Mathematical Science,Anhui University,Hefei 230039,China) |
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Abstract: | By means of the theory of coincidence degree,a type of third order functional differential equation with delays x'''(t)+∑2 i=1aix(i)(t)+bix(i)(t-τi)]+cx(t)+g1(t,x(t))+g2(t,x(t-τ(t)))=e(t) was considered.The sufficient condition for the existence of unique T-periodic solution was obtained. |
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Keywords: | third order functional differential solution periodic solution coincidence degree |
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