A planar graph is a graph that can be drawn on a plane in such a way that its edges intersect only at their end point, i.e, its edges do not cross each other. In the context of this package, we assume ...
Two computer scientists found — in the unlikeliest of places — just the idea they needed to make a big leap in graph theory. This past October, as Jacob Holm and Eva Rotenberg were thumbing through a ...
Abstract: In this paper, Heawood's counterexample graph is artificially colored by using the algorithm of planar graph four-colorable based on path homotopy search, which verifies the feasibility and ...
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