Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay

A predator-prey system with disease in the predator is investigated, where the discrete delay τ is regarded as a parameter. Its dynamics are studied in terms of local analysis and Hopf bifurcation analysis. By analyzing the associated characteristic equation, it is found that Hopf bifurcation occurs...

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Main Authors: Yakui Xue, Xiaoqing Wang
Format: Article
Language:English
Published: Wiley 2012-01-01
Series:Discrete Dynamics in Nature and Society
Online Access:http://dx.doi.org/10.1155/2012/252437
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author Yakui Xue
Xiaoqing Wang
author_facet Yakui Xue
Xiaoqing Wang
author_sort Yakui Xue
collection DOAJ
description A predator-prey system with disease in the predator is investigated, where the discrete delay τ is regarded as a parameter. Its dynamics are studied in terms of local analysis and Hopf bifurcation analysis. By analyzing the associated characteristic equation, it is found that Hopf bifurcation occurs when τ crosses some critical values. Using the normal form theory and center manifold argument, the explicit formulae which determine the stability, direction, and other properties of bifurcating periodic solutions are derived.
format Article
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institution Kabale University
issn 1026-0226
1607-887X
language English
publishDate 2012-01-01
publisher Wiley
record_format Article
series Discrete Dynamics in Nature and Society
spelling doaj-art-3893885410414a848efa131426c6d0832025-02-03T06:44:37ZengWileyDiscrete Dynamics in Nature and Society1026-02261607-887X2012-01-01201210.1155/2012/252437252437Stability and Local Hopf Bifurcation for a Predator-Prey Model with DelayYakui Xue0Xiaoqing Wang1Department of Mathematics, North University of China, Taiyuan, Shanxi 030051, ChinaDepartment of Mathematics, North University of China, Taiyuan, Shanxi 030051, ChinaA predator-prey system with disease in the predator is investigated, where the discrete delay τ is regarded as a parameter. Its dynamics are studied in terms of local analysis and Hopf bifurcation analysis. By analyzing the associated characteristic equation, it is found that Hopf bifurcation occurs when τ crosses some critical values. Using the normal form theory and center manifold argument, the explicit formulae which determine the stability, direction, and other properties of bifurcating periodic solutions are derived.http://dx.doi.org/10.1155/2012/252437
spellingShingle Yakui Xue
Xiaoqing Wang
Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
Discrete Dynamics in Nature and Society
title Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
title_full Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
title_fullStr Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
title_full_unstemmed Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
title_short Stability and Local Hopf Bifurcation for a Predator-Prey Model with Delay
title_sort stability and local hopf bifurcation for a predator prey model with delay
url http://dx.doi.org/10.1155/2012/252437
work_keys_str_mv AT yakuixue stabilityandlocalhopfbifurcationforapredatorpreymodelwithdelay
AT xiaoqingwang stabilityandlocalhopfbifurcationforapredatorpreymodelwithdelay