Triangle factors of graphs without large independent sets and of weighted graphs
Triangle factors of graphs without large independent sets and of weighted graphs
复制标题
无大独立集的图和加权图的三角因子
DOI:
10.1002/rsa.20670
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发表时间:
2016
影响因子:
1
通讯作者:
M. Sharifzadeh
中科院分区:
文献类型:
--
作者:
J. Balogh;T. Molla;M. Sharifzadeh
The classical Corrádi‐Hajnal theorem claims that every n‐vertex graph G with δ(G)≥2n/3 contains a triangle factor, when 3|n . In this paper we present two related results that both use the absorbing technique of Rödl, Ruciński and Szemerédi. Our main result determines the minimum degree condition necessary to guarantee a triangle factor in graphs with sublinear independence number. In particular, we show that if G is an n‐vertex graph with α(G)=o(n) and δ(G)≥(1/2+o(1))n , then G has a triangle factor and this is asymptotically best possible. Furthermore, it is shown for every r that if every linear size vertex set of a graph G spans quadratically many edges, and δ(G)≥(1/2+o(1))n , then G has a Kr‐factor for n sufficiently large. We also propose many related open problems whose solutions could show a relationship with Ramsey‐Turán theory.
DOI:
10.1017/s0963548318000196
发表时间:
2018
期刊:
Combinatorics, Probability and Computing
影响因子:
--
作者:
BALOGH J
通讯作者:
BALOGH J
影响因子:
1.1
作者:
D. Kühn;Deryk Osthus
通讯作者:
D. Kühn;Deryk Osthus