具有弱阿利效应延迟和竞争延迟的捕食者-猎物模型的稳定性和霍普夫分岔分析

IF 4.6 Q2 MATERIALS SCIENCE, BIOMATERIALS
Yurong Dong, Hua Liu, Yumei Wei, Qibin Zhang, Gang Ma
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引用次数: 0

摘要

本文旨在研究一个具有阿利效应和双重时间延迟的捕食者-猎物模型。本研究探讨了该模型的动力学,重点是正相关性、存在性、稳定性和霍普夫分岔。通过应用正态形式理论和中心流形定理,阐明了周期解的稳定性和霍普夫分岔的方向。为了验证理论分析的正确性,还进行了数值模拟。结果表明,弱阿利效应延迟能促进模型的稳定性,使其从不稳定性过渡到稳定性。然而,竞争延迟会引起周期性振荡和混乱动力学,最终导致种群崩溃。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Stability and Hopf Bifurcation Analysis of a Predator–Prey Model with Weak Allee Effect Delay and Competition Delay
The purpose of this paper is to study a predator–prey model with Allee effect and double time delays. This research examines the dynamics of the model, with a focus on positivity, existence, stability and Hopf bifurcations. The stability of the periodic solution and the direction of the Hopf bifurcation are elucidated by applying the normal form theory and the center manifold theorem. To validate the correctness of the theoretical analysis, numerical simulations were conducted. The results suggest that a weak Allee effect delay can promote stability within the model, transitioning it from instability to stability. Nevertheless, the competition delay induces periodic oscillations and chaotic dynamics, ultimately resulting in the population’s collapse.
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来源期刊
ACS Applied Bio Materials
ACS Applied Bio Materials Chemistry-Chemistry (all)
CiteScore
9.40
自引率
2.10%
发文量
464
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