Definition:Bifurcation/Hopf

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Definition

A Hopf bifurcation is a bifurcation in which a family of flows $\map {x_\lambda} t$, indexed by a real bifurcation parameter $\lambda$, has an attractor consisting of:

a fixed point replaced by a circle
a repelling fixed point for a small change in the index.


Example Diagram

This is a diagram illustrating the effect of a Hopf bifurcation:

Hopf-bifurcation.png

On the left is a depiction of the flow lines before the bifurcation.

On the right is a depiction of the flow lines after the bifurcation.

In both cases the flow lines are in blue and the attractor is in red.


Also see

  • Results about Hopf bifurcations can be found here.


Sources