Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis

We study the existence of global unique classical solution to a density-dependent prey-predator population system with indirect prey-taxis effect. With two Lyapunov functions appropriately constructed, we then show that the solution can asymptotically approach prey-only state or coexistence state of...

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Main Author: Yong Luo
Format: Article
Language:English
Published: AIMS Press 2021-08-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2021331?viewType=HTML
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author Yong Luo
author_facet Yong Luo
author_sort Yong Luo
collection DOAJ
description We study the existence of global unique classical solution to a density-dependent prey-predator population system with indirect prey-taxis effect. With two Lyapunov functions appropriately constructed, we then show that the solution can asymptotically approach prey-only state or coexistence state of the system under suitable conditions. Moreover, linearized analysis on the system at these two constant steady states shows their linear instability criterion. By numerical simulation we find that some density-dependent prey-taxis and predators' diffusion may either flatten the spatial one-dimensional patterns which exist in non-density-dependent case, or break the spatial two-dimensional distribution similarity which occurs in non-density-dependent case between predators and chemoattractants (released by prey).
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spelling doaj.art-fa2e524b46704f13a3a6e9f870e348442022-12-22T04:04:46ZengAIMS PressMathematical Biosciences and Engineering1551-00182021-08-011856672669910.3934/mbe.2021331Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxisYong Luo0Department of Applied Mathematics, The Hong Kong Polytechnic University, Hung Hom, Hong KongWe study the existence of global unique classical solution to a density-dependent prey-predator population system with indirect prey-taxis effect. With two Lyapunov functions appropriately constructed, we then show that the solution can asymptotically approach prey-only state or coexistence state of the system under suitable conditions. Moreover, linearized analysis on the system at these two constant steady states shows their linear instability criterion. By numerical simulation we find that some density-dependent prey-taxis and predators' diffusion may either flatten the spatial one-dimensional patterns which exist in non-density-dependent case, or break the spatial two-dimensional distribution similarity which occurs in non-density-dependent case between predators and chemoattractants (released by prey).https://www.aimspress.com/article/doi/10.3934/mbe.2021331?viewType=HTMLdensity-dependentindirect prey-taxislyapunov functionasymptotical stabilitynonlinear semigroup
spellingShingle Yong Luo
Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
Mathematical Biosciences and Engineering
density-dependent
indirect prey-taxis
lyapunov function
asymptotical stability
nonlinear semigroup
title Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
title_full Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
title_fullStr Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
title_full_unstemmed Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
title_short Global existence and stability of the classical solution to a density-dependent prey-predator model with indirect prey-taxis
title_sort global existence and stability of the classical solution to a density dependent prey predator model with indirect prey taxis
topic density-dependent
indirect prey-taxis
lyapunov function
asymptotical stability
nonlinear semigroup
url https://www.aimspress.com/article/doi/10.3934/mbe.2021331?viewType=HTML
work_keys_str_mv AT yongluo globalexistenceandstabilityoftheclassicalsolutiontoadensitydependentpreypredatormodelwithindirectpreytaxis