21. Switching a set of vertices affects the adjacency matrix by negating the rows and columns of the switched vertices. 22. Neighbourhoods may be used to represent graphs in computer algorithms, via the adjacency list and adjacency matrix representations. 23. The resulting matrix, called adjacency matrix , represents the graph of the constructed gene co-expression network. 24. In graph theory, a digraph whose adjacency matrix is circulant is called a circulant graph ( or digraph ). 25. Partitioning methods include : Path Searching; Reachability Matrix; Triangulation algorithm; and the powers of the Adjacency Matrix . 26. The principal eigenvector of a modified adjacency matrix of the World Wide Web graph gives the page ranks as its components. 27. The Coxeter graph is also uniquely determined by its graph spectrum, the set of graph eigenvalues of its adjacency matrix . 28. Since G \, is a bipartite graph, we may consider its n \ times m \, adjacency matrix . 29. A startling conclusion is that regardless of the initial transformation of the adjacency matrix , all such approaches have common limiting behavior. 30. The result is another adjacency matrix , which stores the links for a network described by all the links in the parents.
