Degree Lists and Connectedness are 3-Reconstructible for Graphs with At Least Seven Vertices

Degree Lists and Connectedness are 3-Reconstructible for Graphs with At Least Seven Vertices
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对于具有至少七个顶点的图,度列表和连通性是 3-可重构的

DOI:
10.1007/s00373-020-02131-6
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发表时间:
2019-04
影响因子:
0.7
通讯作者:
Zirlin Dara
Zirlin Dara
中科院分区:
数学4区
文献类型:
--
作者:
Kostochka Alex;r V.;Nahvi Mina;West Douglas B.;Zirlin Dara

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图的k-甲板是由k个顶点导出的子图的多集。一个图或图的性质是l-可重构的,如果它是由删除l个顶点得到的子图的甲板确定的。证明了当n ≥ 7时,n-顶点图的度表是3-可重构的,且n上的阈值是尖锐的.利用这个结果,我们证明了当n >= 7-deck也决定了一个n-顶点图是否连通;这也是尖锐的。这些结果分别推广了Chernyak和Manvel的结果,即当n >= 6时,度表和连通性是2-可重构的,这两个结果也是尖锐的.
The k-deck of a graph is the multiset of its subgraphs induced by k vertices. A graph or graph property is l-reconstructible if it is determined by the deck of subgraphs obtained by deleting l vertices. We show that the degree list of an n-vertex graph is 3-reconstructible when n >= 7, and the threshold on n is sharp. Using this result, we show that when n >= 7-deck also determines whether an n-vertex graph is connected; this is also sharp. These results extend the results of Chernyak and Manvel, respectively, that the degree list and connectedness are 2-reconstructible when n >= 6, which are also sharp.
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