Transcritical Bifurcation

Let  be a one-parameter family of  maps satisfying

	(1)
	(2)
	(3)
	(4)

Here, it turns out that condition (1) can be relaxed slightly, and the left-hand side of (2) has been corrected from the value of 1 given by Rasband (1990, p. 30).

Then there are two branches, one stable and one unstable. This bifurcation is called a transcritical bifurcation.

An example of an equation displaying a transcritical bifurcation is

(5)

(Guckenheimer and Holmes 1997, p. 145).

REFERENCES:

Guckenheimer, J. and Holmes, P. Nonlinear Oscillations, Dynamical Systems, and Bifurcations of Vector Fields, 3rd ed. New York: Springer-Verlag, pp. 145 and 149-150, 1997.

Rasband, S. N. Chaotic Dynamics of Nonlinear Systems. New York: Wiley, p. 30, 1990.