FAQ Database Discussion Community

Prove NP-completeness of CLIQUE-OR-INDEPENDENT-SET

First of all, I want to mention that this is my homework. However, to solve my problem I can use any literature I want. Even though I think that problem is clear from its name, I will give it description: "For given undirected graph G and given integer k, does...

Sorting rows and columns of adjacency matrix to reveal cliques

I'm looking for a reordering technique to group connected components of an adjacency matrix together. For example, I've made an illustration with two groups, blue and green. Initially the '1's entries are distributed across the rows and columns of the matrix. By reordering the rows and columns, all '1''s can...