Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System

This paper focuses on a strongly coupled specific ecological system consisting of two prey species and one predator. We explore a unique positive equilibrium solution of the system that is globally asymptotically stable. Additionally, we show that this equilibrium solution remains locally linearly s...

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Main Authors: Ying Yu, Yahui Chen, You Zhou
Format: Article
Language:English
Published: MDPI AG 2023-05-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/11/11/2411
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author Ying Yu
Yahui Chen
You Zhou
author_facet Ying Yu
Yahui Chen
You Zhou
author_sort Ying Yu
collection DOAJ
description This paper focuses on a strongly coupled specific ecological system consisting of two prey species and one predator. We explore a unique positive equilibrium solution of the system that is globally asymptotically stable. Additionally, we show that this equilibrium solution remains locally linearly stable, even in the presence of diffusion. This means that the system does not follow classical Turing instability. However, it becomes linearly unstable only when cross-diffusion also plays a role in the system, which is called a cross-diffusion-induced instability. The corresponding numerical simulations are also demonstrated and we obtain the spatial patterns.
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spelling doaj.art-8d1a759394f647ef9051ec6dce2467602023-11-18T08:11:41ZengMDPI AGMathematics2227-73902023-05-011111241110.3390/math11112411Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator SystemYing Yu0Yahui Chen1You Zhou2School of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaSchool of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaSchool of Mathematical Science, Yangzhou University, Yangzhou 225002, ChinaThis paper focuses on a strongly coupled specific ecological system consisting of two prey species and one predator. We explore a unique positive equilibrium solution of the system that is globally asymptotically stable. Additionally, we show that this equilibrium solution remains locally linearly stable, even in the presence of diffusion. This means that the system does not follow classical Turing instability. However, it becomes linearly unstable only when cross-diffusion also plays a role in the system, which is called a cross-diffusion-induced instability. The corresponding numerical simulations are also demonstrated and we obtain the spatial patterns.https://www.mdpi.com/2227-7390/11/11/2411predator–prey systemcross-diffusionTuring instability
spellingShingle Ying Yu
Yahui Chen
You Zhou
Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
Mathematics
predator–prey system
cross-diffusion
Turing instability
title Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
title_full Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
title_fullStr Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
title_full_unstemmed Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
title_short Cross-Diffusion-Induced Turing Instability in a Two-Prey One-Predator System
title_sort cross diffusion induced turing instability in a two prey one predator system
topic predator–prey system
cross-diffusion
Turing instability
url https://www.mdpi.com/2227-7390/11/11/2411
work_keys_str_mv AT yingyu crossdiffusioninducedturinginstabilityinatwopreyonepredatorsystem
AT yahuichen crossdiffusioninducedturinginstabilityinatwopreyonepredatorsystem
AT youzhou crossdiffusioninducedturinginstabilityinatwopreyonepredatorsystem