Editing Percolation theory (section)

{{Short description|Mathematical theory on behavior of connected clusters in a random graph}}
{{Network science}}
In [[statistical physics]] and [[mathematics]], '''percolation theory''' describes the behavior of a network when nodes or links are added. This is a geometric type of [[phase transition]], since at a critical fraction of addition the network of small, disconnected clusters merge into significantly larger [[Glossary of graph theory|connected]], so-called spanning clusters. The applications of percolation theory to [[materials science]] and in many other disciplines are discussed here and in the articles [[Network theory]] and [[Percolation (cognitive psychology)]].