Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters

In this manuscript, a novel predator-prey system combining prey refuge with fuzzy parameters is formulated. Sufficient conditions for the existence and stability of biological equilibria are derived. The existence of bionomic equilibria is discussed under fuzzy biological parameters. The optimal har...

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Main Authors: Qinglong Wang, Shuqi Zhai, Qi Liu, Zhijun Liu
Format: Article
Language:English
Published: AIMS Press 2021-10-01
Series:Mathematical Biosciences and Engineering
Subjects:
Online Access:https://www.aimspress.com/article/doi/10.3934/mbe.2021448?viewType=HTML
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author Qinglong Wang
Shuqi Zhai
Qi Liu
Zhijun Liu
author_facet Qinglong Wang
Shuqi Zhai
Qi Liu
Zhijun Liu
author_sort Qinglong Wang
collection DOAJ
description In this manuscript, a novel predator-prey system combining prey refuge with fuzzy parameters is formulated. Sufficient conditions for the existence and stability of biological equilibria are derived. The existence of bionomic equilibria is discussed under fuzzy biological parameters. The optimal harvesting policy, by Pontryagin's maximal principle, is also investigated under imprecise inflation and discount in fuzzy environment. Meticulous numerical simulations are performed to validate our theoretical analysis in detail.
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spelling doaj.art-966516f4922344d08b4538af53df6d062022-12-21T20:28:47ZengAIMS PressMathematical Biosciences and Engineering1551-00182021-10-011869094912010.3934/mbe.2021448Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parametersQinglong Wang0Shuqi Zhai1Qi Liu 2Zhijun Liu3School of Mathematics and Statistics, Hubei Minzu University, Enshi, Hubei 445000, ChinaSchool of Mathematics and Statistics, Hubei Minzu University, Enshi, Hubei 445000, ChinaSchool of Mathematics and Statistics, Hubei Minzu University, Enshi, Hubei 445000, ChinaSchool of Mathematics and Statistics, Hubei Minzu University, Enshi, Hubei 445000, ChinaIn this manuscript, a novel predator-prey system combining prey refuge with fuzzy parameters is formulated. Sufficient conditions for the existence and stability of biological equilibria are derived. The existence of bionomic equilibria is discussed under fuzzy biological parameters. The optimal harvesting policy, by Pontryagin's maximal principle, is also investigated under imprecise inflation and discount in fuzzy environment. Meticulous numerical simulations are performed to validate our theoretical analysis in detail.https://www.aimspress.com/article/doi/10.3934/mbe.2021448?viewType=HTMLpredator-prey systemprey refugefuzzy numberstabilitybionomic equilibriumfuzzy optimal harvesting
spellingShingle Qinglong Wang
Shuqi Zhai
Qi Liu
Zhijun Liu
Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
Mathematical Biosciences and Engineering
predator-prey system
prey refuge
fuzzy number
stability
bionomic equilibrium
fuzzy optimal harvesting
title Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
title_full Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
title_fullStr Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
title_full_unstemmed Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
title_short Stability and optimal harvesting of a predator-prey system combining prey refuge with fuzzy biological parameters
title_sort stability and optimal harvesting of a predator prey system combining prey refuge with fuzzy biological parameters
topic predator-prey system
prey refuge
fuzzy number
stability
bionomic equilibrium
fuzzy optimal harvesting
url https://www.aimspress.com/article/doi/10.3934/mbe.2021448?viewType=HTML
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AT shuqizhai stabilityandoptimalharvestingofapredatorpreysystemcombiningpreyrefugewithfuzzybiologicalparameters
AT qiliu stabilityandoptimalharvestingofapredatorpreysystemcombiningpreyrefugewithfuzzybiologicalparameters
AT zhijunliu stabilityandoptimalharvestingofapredatorpreysystemcombiningpreyrefugewithfuzzybiologicalparameters