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The existence of Hopf bifurcation for a delayed Holling–Tanner type predator–prey model

Published online by Cambridge University Press:  05 January 2026

Canan Çelik
Affiliation:
Departments of Mathematics, Yildiz Technical University , Türkiye e-mail: celikcan@yildiz.edu.tr
Adalet Zeynep Esirgen*
Affiliation:
Departments of Mathematics, Yildiz Technical University , Türkiye e-mail: celikcan@yildiz.edu.tr

Abstract

In this study, a Holling–Tanner type predator–prey model with a discrete time delay is investigated, where the functional response of the predator dynamics is ratio-dependent. We first analyze the local stability of the equilibrium point and examine the existence of Hopf bifurcations. The Hopf bifurcation, also known as the Poincaré–Andronov–Hopf bifurcation, is named after the French mathematician Jules Henri Poincaré, the Russian mathematician Alexander A. Andronov, and the German mathematician Heinz Hopf, whose fundamental contributions laid the foundation of this theory. By treating the delay parameter $\tau $ as the bifurcation parameter, we show that a Hopf bifurcation occurs when the delay crosses certain critical values. Finally, numerical simulations are carried out to support and illustrate our theoretical results.

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Article
Copyright
© The Author(s), 2026. Published by Cambridge University Press on behalf of Canadian Mathematical Society

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