Spanning trees with at most 3 leaves in K1, 4-free graphs

Spanning trees with at most 3 leaves in K1, 4-free graphs
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DOI:
10.1016/j.disc.2009.04.023
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发表时间:
2009
期刊:
Discret. Math.
影响因子:
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通讯作者:
Aung Kyaw
Aung Kyaw
中科院分区:
其他
文献类型:
--
作者:
Aung Kyaw

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本文给出了Flandrin,Kaiser,Kuzel,Li和Ryjáček [E. Flandrin,T.凯泽河Kuzel,H. Li和Z. Ryjáček,Discrete Math.308(2008),2343-2350]。 这里σ4(G)=min{∑i= 1, 4degG(vi):{v1,v2,v3,v4}是G的独立集},无K1,4-图是没有导出K1,4子图的图.
We present a solution of the following problem posed by Flandrin, Kaiser, Kuzel, Li and Ryjáček [E. Flandrin, T. Kaiser, R. Kuzel, H. Li and Z. Ryjáček, Discrete Math. 308(2008), 2343–2350]. Here σ4(G)=min{∑i=14degG(vi):{v1,v2,v3,v4} is an independent set of G} and K1,4-free graph is a graph without an induced K1,4subgraph.