The minimum degree threshold for perfect graph packings
The minimum degree threshold for perfect graph packings
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DOI:
10.1007/s00493-009-2254-3
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发表时间:
2006-03
期刊:
影响因子:
1.1
通讯作者:
D. Kühn;Deryk Osthus
中科院分区:
文献类型:
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作者:
D. Kühn;Deryk Osthus
LetHbe any graph. We determine up to an additive constant the minimum degree of a graphGwhich ensures thatGhas a perfectH-packing (also called anH-factor). More precisely, letδ(H,n) denote the smallest integerksuch that every graphGwhose ordernis divisible by |H| and withδ(G)≥kcontains a perfectH-packing. We show that.The value ofχ*(H) depends on the relative sizes of the colour classes in the optimal colourings ofHand satisfiesχ(H)−1<χ*(H)≤χ(H).