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Mathematical Methods in the Applied Sciences
Article . 2021 . Peer-reviewed
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Article . 2021
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https://dx.doi.org/10.48550/ar...
Article . 2025
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Predator‐prey models with memory and kicks: Exact solution and discrete maps with memory

Predator-prey models with memory and kicks: exact solution and discrete maps with memory
Authors: Vasily E. Tarasov;

Predator‐prey models with memory and kicks: Exact solution and discrete maps with memory

Abstract

In this paper, we proposed new predator‐prey models that take into account memory and kicks. Memory is understood as the dependence of current behavior on the history of past behavior. The equations of these proposed models are generalizations of the Lotka‐Volterra and Kolmogorov equations by using the Caputo fractional derivative of non‐integer order and periodic kicks. This fractional derivative allows us to take into account memory with power‐law fading. The periodic kicks, which are described by Dirac delta‐functions, take into account short duration of interaction between predators and prey. For the proposed equations, which are fractional differential equations with kicks, we obtain exact solutions that describe behaviors of predator and prey with power‐law fading memory. Using these exact solutions, we derive, without using any approximations, new discrete maps with memory that represent the proposed predator‐prey models with memory.

Related Organizations
Keywords

processes with memory, Chaotic Dynamics, Populations and Evolution (q-bio.PE), FOS: Physical sciences, Fractional ordinary differential equations, Dynamical Systems (math.DS), Discontinuous ordinary differential equations, fractional calculus, Dynamical Systems, discrete map with memory, Kolmogorov equations, Population dynamics (general), Populations and Evolution, FOS: Biological sciences, Qualitative investigation and simulation of ordinary differential equation models, Explicit solutions, first integrals of ordinary differential equations, fractional differential equation, FOS: Mathematics, predator-prey model, Lotka-Volterra equations, 26A33, 34A08, Chaotic Dynamics (nlin.CD), fractional dynamics

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
15
Top 10%
Average
Top 10%
Green