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Under the influence of crowding effects:Stability,bifurcation and chaos control for a discrete-time predator-prey model 被引量:1
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作者 muhammad aqib abbasi Qamar Din 《International Journal of Biomathematics》 SCIE 2019年第4期185-213,共29页
The interaction between predators and preys exhibits more complicated behavior under the influence of crowding effects. By taking into account the crowding effects, the qualitative behavior of a prey-predator model is... The interaction between predators and preys exhibits more complicated behavior under the influence of crowding effects. By taking into account the crowding effects, the qualitative behavior of a prey-predator model is investigated. Particularly, we examine the boundedness as well as existence and uniqueness of positive steady-state and stability analysis of the unique positive steady-state. Moreover, it is also proved that the system undergoes Hopf bifurcation and flip bifurcation with the help of bifurcation theory. Moreover, a chaos control technique is proposed for controlling chaos under the influence of bifurcations. Finally, numerical simulations are provided to illustrate the theoretical results. These results of numerical simulations demonstrate chaotic long-term behavior over a broad range of parameters. The presence of chaotic behavior in the model is confirmed by computing maximum Lyapunov exponents. 展开更多
关键词 PREY-PREDATOR model STABILITY analysis boundedness flip bifurcation HOPFBIFURCATION chaos CONTROL
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Fixed points stability,bifurcation analysis,and chaos control of a Lotka-Volterra model with two predators and their prey
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作者 muhammad aqib abbasi 《International Journal of Biomathematics》 SCIE 2024年第4期1-38,共38页
The study of the population dynamics of a three-species Lotka-Volterra model is crucial in gaining a deeper understanding of the delicate balance between prey and predator populations.This research takes a unique appr... The study of the population dynamics of a three-species Lotka-Volterra model is crucial in gaining a deeper understanding of the delicate balance between prey and predator populations.This research takes a unique approach by exploring the stability of fixed points and the occurrence of Hopf bifurcation.By using the bifurcation theory,our study provides a comprehensive analysis of the conditions for the existence of Hopf bifurcation.This is validated through detailed numerical simulations and visual representations that demonstrate the potential for chaos in these systems.To mitigate this instability,we employ a hybrid control strategy that ensures the stability of the controlled model even in the presence of Hopf bifurcation.This research is not only significant in advancing the field of ecology but also has far-reaching practical implications for wildlife management and conservation efforts.Our results provide a deeper understanding of the complex dynamics of prey-predator interactions and have the potential to inform sustainable management practices and ensure the survival of these species. 展开更多
关键词 Fixed points existence and uniqueness Hopf bifurcation
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