Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response

A predator-prey model with Ivlev-Type functional response is studied. The main purpose is to investigate the global stability of a positive (co-existence) equilibrium, whenever it exists. A recently developed approach shows that for certain classes of models, there is an implicitly defined function...

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Main Authors: Yinshu Wu, Wenzhang Huang
Format: Article
Language:English
Published: Western Libraries 2020-09-01
Series:Mathematics in Applied Sciences and Engineering
Online Access:https://ojs.lib.uwo.ca/index.php/mase/article/view/10794
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author Yinshu Wu
Wenzhang Huang
author_facet Yinshu Wu
Wenzhang Huang
author_sort Yinshu Wu
collection DOAJ
description A predator-prey model with Ivlev-Type functional response is studied. The main purpose is to investigate the global stability of a positive (co-existence) equilibrium, whenever it exists. A recently developed approach shows that for certain classes of models, there is an implicitly defined function which plays an important rule in determining the global stability of the positive equilibrium. By performing a detailed analytic analysis we demonstrate that a crucial property of this implicitly defined function is governed by the local stability of the positive equilibrium, which enable us to show that the global and local stability of the positive equilibrium, whenever it exists, is equivalent. We believe that our approach can be extended to study the global stability of the positive equilibrium for predator-prey models with some other types of functional responses.
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spelling doaj.art-3cc0a0c5ce5e436190e1a1d470be72882022-12-21T21:47:37ZengWestern LibrariesMathematics in Applied Sciences and Engineering2563-19262020-09-011322423510.5206/mase/107944938Global Stability of a Predator-Prey Model with Ivlev-Type Functional ResponseYinshu Wu0Wenzhang HuangAlabama A&M UniversityA predator-prey model with Ivlev-Type functional response is studied. The main purpose is to investigate the global stability of a positive (co-existence) equilibrium, whenever it exists. A recently developed approach shows that for certain classes of models, there is an implicitly defined function which plays an important rule in determining the global stability of the positive equilibrium. By performing a detailed analytic analysis we demonstrate that a crucial property of this implicitly defined function is governed by the local stability of the positive equilibrium, which enable us to show that the global and local stability of the positive equilibrium, whenever it exists, is equivalent. We believe that our approach can be extended to study the global stability of the positive equilibrium for predator-prey models with some other types of functional responses.https://ojs.lib.uwo.ca/index.php/mase/article/view/10794
spellingShingle Yinshu Wu
Wenzhang Huang
Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
Mathematics in Applied Sciences and Engineering
title Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
title_full Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
title_fullStr Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
title_full_unstemmed Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
title_short Global Stability of a Predator-Prey Model with Ivlev-Type Functional Response
title_sort global stability of a predator prey model with ivlev type functional response
url https://ojs.lib.uwo.ca/index.php/mase/article/view/10794
work_keys_str_mv AT yinshuwu globalstabilityofapredatorpreymodelwithivlevtypefunctionalresponse
AT wenzhanghuang globalstabilityofapredatorpreymodelwithivlevtypefunctionalresponse