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.
Snapshots before the rewiring (left) and afterwards (right), where the edge 
was deleted from the graph (company 
gave up its shares of 
), and new edge 
was added (company 
bought shares of company 
). Important links with high values 
are favored according to the replacement probability of Eq. 3.
