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Bogdanov-Takens bifurcation in predator-prey systems

  • * Corresponding author: Pei Yu

    * Corresponding author: Pei Yu
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  • In this paper, we consider Bogdanov-Takens bifurcation in two predator-prey systems. It is shown that in the full parameter space, Bogdanov-Talens bifurcation can be codimension $ 2 $, $ 3 $ or $ 4 $. First, the simplest normal form theory is applied to determine the codimension of the systems as well as the unfolding terms. Then, bifurcation analysis is carried out to describe the dynamical behaviour and bifurcation property of the systems around the critical point.

    Mathematics Subject Classification: Primary: 58F15, 58F17; Secondary: 53C35.


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