csciencechinapressandspringerverlagberlinheidelberg2015mathscichinacomlinkspringercomjudiciouspartitionsofweightedhypergraphs | |
Xu Xin; Yan Guiying; Zhang Yao | |
刊名 | sciencechinamathematics |
2016 | |
卷号 | 59期号:3页码:609 |
ISSN号 | 1674-7283 |
英文摘要 | Let G be a weighted hypergraph with edges of size i for i = 1, 2. Let wi denote the total weight of edges of size i and be the maximum weight of an edge of size 1. We study the following partitioning problem of Bollobas and Scott: Does there exist a bipartition such that each class meets edges of total weight at least (w_1–α)/2 + (2w2)/3 ? We provide an optimal bound for balanced bipartition of weighted hypergraphs, partially establishing this conjecture. For dense graphs, we also give a result for partitions into more than two classes. In particular, it is shown that any graph G with m edges has a partition V_1, . . ., V_k such that each vertex set meets at least (1 – (1 – 1/k)~2)m + o(m) edges, which answers a related question of Bollobas and Scott. |
语种 | 英语 |
内容类型 | 期刊论文 |
源URL | [http://ir.amss.ac.cn/handle/2S8OKBNM/38810] |
专题 | 应用数学研究所 |
作者单位 | 中国科学院数学与系统科学研究院 |
推荐引用方式 GB/T 7714 | Xu Xin,Yan Guiying,Zhang Yao. csciencechinapressandspringerverlagberlinheidelberg2015mathscichinacomlinkspringercomjudiciouspartitionsofweightedhypergraphs[J]. sciencechinamathematics,2016,59(3):609. |
APA | Xu Xin,Yan Guiying,&Zhang Yao.(2016).csciencechinapressandspringerverlagberlinheidelberg2015mathscichinacomlinkspringercomjudiciouspartitionsofweightedhypergraphs.sciencechinamathematics,59(3),609. |
MLA | Xu Xin,et al."csciencechinapressandspringerverlagberlinheidelberg2015mathscichinacomlinkspringercomjudiciouspartitionsofweightedhypergraphs".sciencechinamathematics 59.3(2016):609. |
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