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首页> 外文期刊>Journal of Combinatorial Theory, Series B >Distance-regular Cayley graphs on dihedral groups
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Distance-regular Cayley graphs on dihedral groups

机译:二面体组上的距离规则Cayley图

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The main result of this article is a classification of distance-regular Cayley graphs on dihedral groups. There exist four obvious families of such graphs, which are called trivial. These are: complete graphs, complete multipartite graphs, complete bipartite graphs with the edges of a 1-factor removed, and cycles. It is proved that every non-trivial distance-regular Cayley graph on a dihedral group is bipartite, non-antipodal, has diameter 3 and arises either from a cyclic difference set, or possibly (if any such exists) from a dihedral difference set satisfying some additional conditions. (c) 2006 Elsevier Inc. All rights reserved.
机译:本文的主要结果是对二面体组上距离规则的Cayley图进行分类。这些图有四个明显的族,称为平凡族。它们是:完整图,完整多部分图,已删除1因子边缘的完整二部图和循环。证明二面角群上的每个非平凡的距离正则Cayley图都是二分的,非对映的,直径为3,或者是由循环差集引起的,或者可能(如果存在)存在于二面差集满足一些附加条件。 (c)2006 Elsevier Inc.保留所有权利。

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