Complete Minors in Cubic Graphs with few short Cycles and Random Cubic Graphs

Complete Minors in Cubic Graphs with few short Cycles and Random Cubic Graphs
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具有少量短循环的三次图和随机三次图的完整辅项

DOI:
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发表时间:
2004
期刊:
Ars Comb.
影响因子:
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通讯作者:
K. Markström
K. Markström
中科院分区:
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文献类型:
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作者:
K. Markström

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我们首先证明了对于任意固定的kappa,具有几个短循环的三次图包含一个K-kappa-minor。这是托马森关于周长结果的直接推广。然后我们用这个定理证明了对于任意固定k,一个随机三次图近渐地几乎肯定包含一个kk次图。
We first prove that for any fixed kappa a cubic graph with few short cycles contains a K-kappa-minor. This is a direct generalisation of a result on girth by Thomassen. We then use this theorem to show that for any fixed k a random cubic graph contains a Kk-minor asymptotically almost surely.