The chromatic spectrum of 3-uniform bi-hypergraphs
The chromatic spectrum of 3-uniform bi-hypergraphs
复制标题
3-均匀双超图的色谱
DOI:
10.1016/j.disc.2011.08.007
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发表时间:
2011-05
影响因子:
0.8
通讯作者:
王恺顺
中科院分区:
文献类型:
--
作者:
王恺顺
Let S={n1,n2,…,nt} be a finite set of positive integers with minS≥3 and t≥2. For any positive integers s1,s2,…,st, we construct a family of 3-uniform bi-hypergraphs H with the feasible set S and [Formula: see text] , where each [Formula: see text] is the nith component of the chromatic spectrum of H. As a result, we solve one open problem for 3-uniform bi-hypergraphs proposed by Bujtás and Tuza in 2008. Moreover, we find a family of sub-hypergraphs with the same feasible set and the same chromatic spectrum as its own. In particular, we obtain a small upper bound on the minimum number of vertices in 3-uniform bi-hypergraphs with the feasible set S.
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DOI:
10.1090/fim/017
发表时间:
2002-06
期刊:
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影响因子:
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作者:
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V. Voloshin
DOI:
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发表时间:
2004-03
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影响因子:
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V. Voloshin
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影响因子:
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通讯作者:
T. Jiang;D. Mubayi;Z. Tuza;V. Voloshin;D. West
DOI:
10.1007/978-3-540-77200-2_12
发表时间:
2008
期刊:
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影响因子:
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作者:
Z. Tuza;V. Voloshin
通讯作者:
Z. Tuza;V. Voloshin