Bifurcations of a Delayed Prototype Model

In this paper, a delayed prototype model is studied. Regarding the delay as a bifurcation parameter, we prove that a sequence of Hopf bifurcations will occur at the positive equilibrium when the delay increases. Using the normal form method and center manifold theory, some explicit formulae are worked out for determining the stability and the direction of the bifurcated periodic solutions. Finally, Computer simulations are carried out to explain some mathematical conclusions.

• Changjin Xu

• Prototype model
• Stability
• Hopf bifurcation
• Delay
• Periodic solution.

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