一类具反馈控制和比率型功能反应食物链系统周期解的存在性

Existence of Positive Periodic Solution of Food Chain System with Feedback Controls and Ratiodependent Functional Response

LI Hui, WANG Yifei

College of Mathematics, Beihua University, Jilin 132013, Jilin Province, China

Received:2008-04-01 Revised:1900-01-01 Online:2009-03-26 Published:2009-03-26
Contact: LI Hui

Abstract

Abstract: The existence of positive periodic solution of food chain system with feedback controls and ratiodependent response was studied by the method of coincidence, a set of sufficent conditions were derived. The continuous and ratio dependent dynamical model was improved.

Key words: predatorprey system, ratiodependent functional res ponse, feedback control, periodic solution, coincence degree

CLC Number:

O175.8

LI Hui, WANG Yifei. Existence of Positive Periodic Solution of Food Chain System with Feedback Controls and Ratiodependent Functional Response[J].J4, 2009, 47(02): 221-227.

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Existence of Positive Periodic Solution of Food Chain System with Feedback Controls and Ratiodependent Functional Response

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