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Applied Mathematics and Mechanics (English Edition) ›› 2003, Vol. 24 ›› Issue (1): 117-122.

• 论文 • 上一篇    

ON THE EXISTENCE OF PERIODIC SOLUTIONS FOR NONLINEAR SYSTEM WITH MULTIPLE DELAYS

曹显兵   

  1. Basic Sciences Department, Beijing Technology and Business University, Beijing 100037, China
  • 收稿日期:2001-10-09 修回日期:2002-09-26 出版日期:2003-01-18 发布日期:2003-01-18

ON THE EXISTENCE OF PERIODIC SOLUTIONS FOR NONLINEAR SYSTEM WITH MULTIPLE DELAYS

CAO Xian-bing   

  1. Basic Sciences Department, Beijing Technology and Business University, Beijing 100037, China
  • Received:2001-10-09 Revised:2002-09-26 Online:2003-01-18 Published:2003-01-18

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摘要： The existence of T-periodic solutions of the nonlinear system with multiple delays is studied. By using the topological degree method, sufficient conditions are obtained for the existence of T-periodic solutions. As an application, the existence of positive periodic solution for a logarithmic population model is established under some conditions.

Abstract: The existence of T-periodic solutions of the nonlinear system with multiple delays is studied. By using the topological degree method, sufficient conditions are obtained for the existence of T-periodic solutions. As an application, the existence of positive periodic solution for a logarithmic population model is established under some conditions.

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