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Questions about the branch of combinatorics called graph theory (not to be used for questions concerning the graph of a function). This tag can be further specialized via using it in combination with more specialized tags such as extremal-graph-theory, spectral-graph-theory, algebraic-graph-theory, topological-graph-theory, random-graphs, graph-colorings and several others.

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Are these inclusions between graph classes correct? for ISGCI

outerplanar << EPT We can prove it inductively for an outerplanar graph $G$. If $G$ is disconnected then let $(T_1,{\cal P}_1)$ be an EPT representation of a component and let $(T_2,{\cal P}_2)$ be …
Michael P.'s user avatar