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.
Sample dynamic variable-degree network. (a) One moment in time and (b) a short time later. The formation or deletion of an edge has no impact on other edges. Half the nodes have expected degree 4 and the other half 1. (Online version in colour.)
