Plane four-regular graphs with vertex-to
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Heiko Harborth
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Article
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1991
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Elsevier Science
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English
⚖ 215 KB
Harborth, H., Plane four-regular graphs with vertex-to-vertex unit triangles, Discrete Mathematics 97 (1991) 219-222. For the smallest number of non-overlapping vertex-to-vertex unit triangles in the plane it is proved ~42 in general, and <3800 if additional triangles are not allowed.