Question
Prove that outerplanar graphs are three-colorable. Design a stabilizing algorithm that computes a three-coloring of an outerplanar graph.
Step 1
A key property of outerplanar graphs is that they do not contain a subdivision of \( K_4 \) (the complete graph on four vertices) or \( K_{2,3} \) (the complete bipartite graph) as a subgraph. Show more…
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