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graphs that can be embedded into the plane, i.e. that can be drawn without crossings between the lines representing edges.

11 votes

Generalizations of Planar Graphs

Planar graphs can be characterized in terms of various minor monotone graph invariants such as $\mu(G)$ of Colin de Verdière, or the recent $\sigma(G)$ of Van der Holst and Pendavingh. A graph $G$ is …
Konrad Swanepoel's user avatar