- Another matrix associated with G is the adjacency matrix.
- A method based on adjacency matrix was presented. The fault tolerant formation could be obtained by this method.
- A(G), D(G) denotes the adjacency matrix and the diagonal matrix of vertex degrees of G, respectively.
- Function of prg () used to calculate and output undirected graph of adjacency matrix.
- Based on the adjacency matrix of the network graph, the theoretical proof of the topological arithmetic is given.