Global Attractivity of an Integrodifferential Model of Mutualism

Sufficient conditions are obtained for the global attractivity of the following integrodifferential model of mutualism: dN1(t)/dt=r1N1(t)[((K1+α1∫0∞J2(s)N2(t-s)ds)‍/(1+∫0∞J2(s)N2(t-s)ds))‍-N1(t)], dN2(t)/dt=r2N2(t)[((K2+α2∫0∞J1(s)N1(t-s)ds)‍/(1+∫0∞J1(s)N1(t-s)ds‍))-N2(t)], where ri,Ki, and αi, i=1,2...

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Main Authors: Xiangdong Xie, Fengde Chen, Kun Yang, Yalong Xue
Format: Article
Language:English
Published: Wiley 2014-01-01
Series:Abstract and Applied Analysis
Online Access:http://dx.doi.org/10.1155/2014/928726
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author Xiangdong Xie
Fengde Chen
Kun Yang
Yalong Xue
author_facet Xiangdong Xie
Fengde Chen
Kun Yang
Yalong Xue
author_sort Xiangdong Xie
collection DOAJ
description Sufficient conditions are obtained for the global attractivity of the following integrodifferential model of mutualism: dN1(t)/dt=r1N1(t)[((K1+α1∫0∞J2(s)N2(t-s)ds)‍/(1+∫0∞J2(s)N2(t-s)ds))‍-N1(t)], dN2(t)/dt=r2N2(t)[((K2+α2∫0∞J1(s)N1(t-s)ds)‍/(1+∫0∞J1(s)N1(t-s)ds‍))-N2(t)], where ri,Ki, and αi, i=1,2, are all positive constants. Consider αi>Ki, i=1,2. Consider   Ji∈C([0,+∞),[0,+∞)) and ∫0∞‍Ji(s)ds=1, i=1,2. Our result shows that conditions which ensure the permanence of the system are enough to ensure the global stability of the system. The result not only improves but also complements some existing ones.
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spelling doaj-art-c9ffad0cc00145bdb9b015565f4576172025-02-03T01:26:10ZengWileyAbstract and Applied Analysis1085-33751687-04092014-01-01201410.1155/2014/928726928726Global Attractivity of an Integrodifferential Model of MutualismXiangdong Xie0Fengde Chen1Kun Yang2Yalong Xue3Department of Mathematics, Ningde Normal University, Fujian 352100, ChinaDepartment of Mathematics, Ningde Normal University, Fujian 352100, ChinaCollege of Mathematics and Computer Science, Fuzhou University, Fuzhou, Fujian 350116, ChinaCollege of Mathematics and Computer Science, Fuzhou University, Fuzhou, Fujian 350116, ChinaSufficient conditions are obtained for the global attractivity of the following integrodifferential model of mutualism: dN1(t)/dt=r1N1(t)[((K1+α1∫0∞J2(s)N2(t-s)ds)‍/(1+∫0∞J2(s)N2(t-s)ds))‍-N1(t)], dN2(t)/dt=r2N2(t)[((K2+α2∫0∞J1(s)N1(t-s)ds)‍/(1+∫0∞J1(s)N1(t-s)ds‍))-N2(t)], where ri,Ki, and αi, i=1,2, are all positive constants. Consider αi>Ki, i=1,2. Consider   Ji∈C([0,+∞),[0,+∞)) and ∫0∞‍Ji(s)ds=1, i=1,2. Our result shows that conditions which ensure the permanence of the system are enough to ensure the global stability of the system. The result not only improves but also complements some existing ones.http://dx.doi.org/10.1155/2014/928726
spellingShingle Xiangdong Xie
Fengde Chen
Kun Yang
Yalong Xue
Global Attractivity of an Integrodifferential Model of Mutualism
Abstract and Applied Analysis
title Global Attractivity of an Integrodifferential Model of Mutualism
title_full Global Attractivity of an Integrodifferential Model of Mutualism
title_fullStr Global Attractivity of an Integrodifferential Model of Mutualism
title_full_unstemmed Global Attractivity of an Integrodifferential Model of Mutualism
title_short Global Attractivity of an Integrodifferential Model of Mutualism
title_sort global attractivity of an integrodifferential model of mutualism
url http://dx.doi.org/10.1155/2014/928726
work_keys_str_mv AT xiangdongxie globalattractivityofanintegrodifferentialmodelofmutualism
AT fengdechen globalattractivityofanintegrodifferentialmodelofmutualism
AT kunyang globalattractivityofanintegrodifferentialmodelofmutualism
AT yalongxue globalattractivityofanintegrodifferentialmodelofmutualism