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arXiv 1910.03992math.CO
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至少有一半的蛙跳富勒烯图具有指数数量的Hamilton圈

At least half of the leapfrog fullerene graphs have exponentially many Hamilton cycles

František Kardoš, Martina Mockovčiaková

摘要:

富勒烯图是具有五边形和六边形面的3连通立方可平面图。可平面图的蛙跳变换产生给定图的对偶图的结构。如果一个富勒烯图可以通过蛙跳变换从另一个富勒烯图得到,则称该图为蛙跳图。证明了$n=12k-6$顶点上的蛙跳富勒烯图至少有$2^{k}$ Hamilton圈.

英文摘要:

A fullerene graph is a 3-connected cubic planar graph with pentagonal and hexagonal faces. The leapfrog transformation of a planar graph produces the trucation of the dual of the given graph. A fullerene graph is leapfrog if it can be obtained from another fullerene graph by the leapfrog transformation. We prove that leapfrog fullerene graphs on $n=12k-6$ vertices have at least $2^{k}$ Hamilton cycles.

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