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.
Results of dynamic domain partition for modes #4–9. Dynamic domains are shown in four different colors (see online version) (blue, cyan, green, yellow), and their directions of rotation with respect to a fixed domain (blue) are shown by arrows. The flexible parts not belonging to any domain are gray. The head (stem) of an arrow is assigned the same color as the moving (fixed) domain.
