Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction

We consider a system of differential equations with two delays describing plankton–fish interaction. We analyze the case when the equilibrium point of this system corresponding to the presence of only phytoplankton and the absence of zooplankton and fish is asymptotically stable. In this case, the a...

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Main Author: Maria A. Skvortsova
Format: Article
Language:English
Published: MDPI AG 2021-11-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/9/23/3064
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author Maria A. Skvortsova
author_facet Maria A. Skvortsova
author_sort Maria A. Skvortsova
collection DOAJ
description We consider a system of differential equations with two delays describing plankton–fish interaction. We analyze the case when the equilibrium point of this system corresponding to the presence of only phytoplankton and the absence of zooplankton and fish is asymptotically stable. In this case, the asymptotic behavior of solutions to the system is studied. We establish estimates of solutions characterizing the stabilization rate at infinity to the considered equilibrium point. The results are obtained using Lyapunov–Krasovskii functionals.
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spelling doaj.art-5d3714e3f0a04009b9eff4242ad77f9d2023-11-23T02:45:29ZengMDPI AGMathematics2227-73902021-11-01923306410.3390/math9233064Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish InteractionMaria A. Skvortsova0Laboratory of Differential and Difference Equations, Sobolev Institute of Mathematics, 4, Acad. Koptyug Avenue, 630090 Novosibirsk, RussiaWe consider a system of differential equations with two delays describing plankton–fish interaction. We analyze the case when the equilibrium point of this system corresponding to the presence of only phytoplankton and the absence of zooplankton and fish is asymptotically stable. In this case, the asymptotic behavior of solutions to the system is studied. We establish estimates of solutions characterizing the stabilization rate at infinity to the considered equilibrium point. The results are obtained using Lyapunov–Krasovskii functionals.https://www.mdpi.com/2227-7390/9/23/3064predator–prey modelplankton–fish interactiondelay differential equationsequilibrium pointasymptotic stabilityestimates for solutions
spellingShingle Maria A. Skvortsova
Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
Mathematics
predator–prey model
plankton–fish interaction
delay differential equations
equilibrium point
asymptotic stability
estimates for solutions
title Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
title_full Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
title_fullStr Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
title_full_unstemmed Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
title_short Asymptotic Properties of Solutions to Delay Differential Equations Describing Plankton—Fish Interaction
title_sort asymptotic properties of solutions to delay differential equations describing plankton fish interaction
topic predator–prey model
plankton–fish interaction
delay differential equations
equilibrium point
asymptotic stability
estimates for solutions
url https://www.mdpi.com/2227-7390/9/23/3064
work_keys_str_mv AT mariaaskvortsova asymptoticpropertiesofsolutionstodelaydifferentialequationsdescribingplanktonfishinteraction