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.
Plots of the Poincaré map F2 in the case k = 2 for various parameter values (). Clockwise from top left: interval of fixed points under negative feedback, unstable fixed point under positive feedback, interval of fixed points under positive feedback, stable fixed point under negative feedback.
