Automorphism Groups of Small Distance-Regular Graphs

被引:0
|
作者
I. N. Belousov
A. A. Makhnev
机构
[1] Russian Academy of Sciences,Krasovskii Institute of Mathematics and Mechanics, Ural Branch
[2] Russian Academy of Sciences,Krasovskii Institute of Mathematics and Mechanics, Ural Branch
来源
Algebra and Logic | 2017年 / 56卷
关键词
distance-regular graph; locally cyclic graph; intersection array; automorphism group;
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学科分类号
摘要
We consider undirected graphs without loops and multiple edges. Previously, V. P. Burichenko and A. A. Makhnev [1] found intersection arrays of distance-regular locally cyclic graphs with the number of vertices at most 1000. It is shown that the automorphism group of a graph with intersection array {15, 12, 1; 1, 2, 15}, {35, 32, 1; 1, 2, 35}, {39, 36, 1; 1, 2, 39}, or {42, 39, 1; 1, 3, 42} (such a graph enters the above-mentioned list) acts intransitively on the set of its vertices.
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页码:261 / 268
页数:7
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