| PERIODIC SOLUTIONS OF PLANAR SYSTEM WITH SIX DELAYS |
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| 引用本文： | 刘智钢,廖六生. PERIODIC SOLUTIONS OF PLANAR SYSTEM WITH SIX DELAYS[J]. Annals of Differential Equations, 2003, 0(3) |
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| 作者姓名： | 刘智钢 廖六生 |
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| 作者单位： | Dept. of Math.，Chenzhou Teacher's College，Chenzhou 423000，Dept. of Math.，Chenzhou Teacher's College，Chenzhou 423000 |
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| 基金项目： | A Project Supported by Scientific Research Fund. of Hunan Provincial Education Department (No. 01C009). |
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| 摘 要： | In this paper we obtain some sufficient conditions for the existence of non-constant periodic solutions of the following planar system with six delaysOur approach is based on the continuation theorem of the coincidence degree.
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PERIODIC SOLUTIONS OF PLANAR SYSTEM WITH SIX DELAYS |
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| Liu Zhigang Liao Liushengl. PERIODIC SOLUTIONS OF PLANAR SYSTEM WITH SIX DELAYS[J]. 微分方程年刊(英文版), 2003, 0(3) |
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| Authors: | Liu Zhigang Liao Liushengl |
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| Abstract: | In this paper we obtain some sufficient conditions for the existence of non-constant periodic solutions of the following planar system with six delaysOur approach is based on the continuation theorem of the coincidence degree. |
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| Keywords: | the planar system non-constant periodic solutions coincidence degree |
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