Distance matching extension in cubic bipartite graphs

Distance matching extension in cubic bipartite graphs
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三次二分图中的距离匹配扩展

DOI:
10.1007/s00373-021-02295-9
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发表时间:
2021
影响因子:
0.7
通讯作者:
A. Saito
A. Saito
中科院分区:
数学4区
文献类型:
--
作者:
R.E.L. Aldred;J. Fujisawa;A. Saito

文献摘要

相似文献

一个图被称为是距离匹配的,如果对于任何匹配的图,其两边至少有距离,存在一个包含距离的完美匹配图。在本文中,我们证明了以下结果:(i)如果gis是一个三次二部图,其中每一个图中存在两个长度最多为6的环,使得每一个图的engi距离可匹配;(ii)如果gis是一个平面或投影平面三次二部图,其中每一个图中存在两个长度最多为6的环,使得engi距离可匹配。
A graphGis said to bedistancedmatchable if, for any matchingMofGin which edges are pairwise at least distancedapart, there exists a perfect matchingofGwhich containsM. In this paper, we prove the following results: (i) ifGis a cubic bipartite graph in which, for each, there exist two cycles,of length at mostdsuch that, thenGis distancematchable, and (ii) ifGis a planar or projective planar cubic bipartite graph in which, for each, there exist two cycles,of length at most 6 such that, thenGis distance 6 matchable.