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arXiv 1605.09461math.COmath.GR
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边传递映射的自同构群

Automorphism groups of edge-transitive maps

Gareth A. Jones

摘要:

对于Graver和Watkins所描述的14类边传递映射中的每一类,都给出了一个群是该类中一个映射或一个无边界可定向映射的自同构群的充要条件.扩展早期的结果Siran,塔克和沃特金斯,这些被用来确定哪些对称群$S_n$可以出现在这种方式为每个类。类似的结果得到所有有限的单群,建设工作的利曼和Liebeck,Nuzhin和其他人对发电机组等群体。它还表明,每个边传递类实现有限群的每一个足够大的零类或导出长度,也实现不可数许多非同构的无限群。对完全图的边传递嵌入进行了分类,并对有边界的边传递映射进行了详细的讨论。

英文摘要:

For each of the 14 classes of edge-transitive maps described by Graver and Watkins, necessary and sufficient conditions are given for a group to be the automorphism group of a map, or of an orientable map without boundary, in that class. Extending earlier results of Siran, Tucker and Watkins, these are used to determine which symmetric groups $S_n$ can arise in this way for each class. Similar results are obtained for all finite simple groups, building on work of Leemans and Liebeck, Nuzhin and others on generating sets for such groups. It is also shown that each edge-transitive class realises finite groups of every sufficiently large nilpotence class or derived length, and also realises uncountably many non-isomorphic infinite groups. Edge-transitive embeddings of complete graphs are classified, and there is a detailed discussion of edge-transitive maps with boundary.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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