On minimum balanced bipartitions of triangle-free graphs
On minimum balanced bipartitions of triangle-free graphs
复制标题
关于无三角形图的最小平衡二分
DOI:
10.1007/s10878-012-9539-y
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发表时间:
2014-04
影响因子:
1
通讯作者:
许宝刚
中科院分区:
文献类型:
--
作者:
李海燕;Liang Yanting;刘木伙;许宝刚
Abalanced bipartitionof a graphGis a partition ofV(G) into two subsetsV1andV2that differ in cardinality by at most 1. Aminimum balanced bipartitionofGis a balanced bipartitionV1,V2ofGminimizinge(V1,V2), wheree(V1,V2) is the number of edges joiningV1andV2and is usually referred to as thesizeof the bipartition. In this paper, we show that every 2-connected graphGadmits a balanced bipartitionV1,V2such that the subgraphs ofGinduced byV1and byV2are both connected. This yields a good upper bound to the size of minimum balanced bipartition of sparse graphs. We also present two upper bounds to the size of minimum balanced bipartitions of triangle-free graphs which sharpen the corresponding bounds of Fan et al. (Discrete Math. 312:1077–1083, 2012).
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DOI:
10.1016/j.jctb.2013.06.002
发表时间:
2011-09
期刊:
ArXiv
影响因子:
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作者:
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通讯作者:
Choongbum Lee;Po-Shen Loh;B. Sudakov
DOI:
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发表时间:
2002
期刊:
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DOI:
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影响因子:
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通讯作者:
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DOI:
10.1016/j.disc.2011.11.030
发表时间:
2012-03
期刊:
Discret. Math.
影响因子:
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通讯作者:
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DOI:
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发表时间:
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期刊:
Order
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作者:
通讯作者:
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