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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.

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Method to draw 3-connected planar graph on a sphere

The Tutte embedding is a way to create a "nice" drawing of a 3-connected planar graph in the plane, after having chosen an outer face. Is there a similar method to draw such a graph on a sphere? Stei …
Szabolcs Horvát's user avatar