Enumerating Global Roundings of an Outerplanar Graph
Enumerating Global Roundings of an Outerplanar Graph
复制标题
枚举外平面图的全局舍入
DOI:
10.1007/978-3-540-24587-2_44
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发表时间:
2003
期刊:
影响因子:
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通讯作者:
T. Tokuyama
中科院分区:
文献类型:
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作者:
Nadia Takki;T. Tokuyama
Given a connected weighted graphG= (V,E), we consider a hypergraphcorresponding to the set of all shortest paths inG. For a given real assignmentaonVsatisfying 0 ≤a(v) ≤ 1, a global roundingαwith respect tois a binary assignment satisfying that | ∑v∈Fa(v) −α(v)| < 1 for every. Asano et al [1] conjectured that there are at most |V|+1 global roundings for. In this paper, we prove that the conjecture holds ifGis an outerplanar graph. Moreover, we give a polynomial time algorithm for enumerating all the global roundings of an outerplanar graph.
DOI:
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发表时间:
2005
期刊:
Theoretical Computer Science Vol.331, No.1
影响因子:
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作者:
K.Sadakane;N.Takki-Chebihi;T.Tokuyama
通讯作者:
T.Tokuyama
DOI:
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发表时间:
2004
期刊:
Theoretical Computer Science 325
影响因子:
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作者:
T.Asano;N.Katoh;H.Tamaki;T.Tokuyama
通讯作者:
T.Tokuyama