Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Two-parameter bifurcation structure for the desingularized system. The curves TR1 and TR2 represent the transcritical bifurcations (type II folded saddle-nodes). The curves SN1-SN4 represent saddle-node bifurcations (type I folded saddle-nodes). The horizontal line is where the fold curves L+ and L- coalesce. A codimension-2 bifurcation occurs at the intersection of the SN curves.
