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arxiv: 1908.06697 · v1 · pith:TLNJ2CX2new · submitted 2019-08-19 · 🧮 math.CO

Counterexamples to Thomassen's conjecture on decomposition of cubic graphs

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keywords verticesblueconjecturecounterexamplescubicdegreeleastsubgraph
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We construct an infinite family of counterexamples to Thomassen's conjecture that the vertices of every 3-connected, cubic graph on at least 8 vertices can be colored blue and red such that the blue subgraph has maximum degree at most 1 and the red subgraph minimum degree at least 1 and contains no path on 4 vertices.

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