Circular-arc hypergraphs: Rigidity via connectedness
Circular-arc hypergraphs: Rigidity via connectedness
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圆弧超图:通过连通性实现刚性
DOI:
10.1016/j.dam.2016.08.008
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
O. Verbitsky
中科院分区:
文献类型:
--
作者:
J. K¨bler;S. Kuhnert;O. Verbitsky
A circular-arc hypergraph H is a hypergraph admitting an arc ordering, that is, a circular ordering of the vertex set V (H) such that every hyperedge is an arc of consecutive vertices. We give a criterion for the uniqueness of an arc ordering in terms of connectedness properties of H. This generalizes the relationship between rigidity and connectedness disclosed by Chen and Yesha (1991) in the case of interval hypergraphs. Moreover, we state sufficient conditions for the uniqueness of tight arc orderings where, for any two hyperedges A and B such that A⊆ B≠ V (H), the corresponding arcs must share a common endpoint. We notice that these conditions are obeyed for the closed neighborhood hypergraphs of proper circular-arc graphs, implying for them the known rigidity results that were originally obtained using the theory of local tournament graph orientations.
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影响因子:
0.8
作者:
J. Bang;Jing Huang;Anders Yeo
通讯作者:
Anders Yeo
DOI:
10.1016/j.jda.2016.03.001
发表时间:
2016
期刊:
影响因子:
--
作者:
J. Köbler;S. Kuhnert;O. Verbitsky
通讯作者:
O. Verbitsky
DOI:
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发表时间:
1984
期刊:
Discret. Math.
影响因子:
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作者:
A. Quilliot
通讯作者:
A. Quilliot
影响因子:
1.1
作者:
Francisco J. Soulignac
通讯作者:
Francisco J. Soulignac
DOI:
10.46298/dmtcs.625
发表时间:
2012
期刊:
Discret. Math. Theor. Comput. Sci.
影响因子:
--
作者:
Andrew R. Curtis;Min Chih Lin;R. McConnell;Yahav Nussbaum;Francisco J. Soulignac;J. Spinrad;J. Szwarcfiter
通讯作者:
J. Szwarcfiter