H-packing of k-chromatic graphs
H-packing of k-chromatic graphs
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k 色图的 H 堆积
DOI:
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发表时间:
2012
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通讯作者:
R. Yuster
中科院分区:
文献类型:
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作者:
R. Yuster
For graphs H and G, let pH(G) denote the maximum number of edges covered by a set of edge-disjoint copies of H in G. We prove that if H is k-chromatic, then pH(G) > > pKk (G) o V(G) 2 . The error term cannot be improved much, as for any � > 0 there are graphs H with � (H) = k such that for all n sufciently large, there are graphs G with n vertices for which pH(G) 6 pKk (G) n 2 � . We present several applications of this result in extremal graph