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arXiv 1303.6802math.CO
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抽象多面体和流形的对称型图

Symmetry Type Graphs of Abstract Polytopes and Maniplexes

Gabe Cunningham, Maria del Rio Francos, Isabel Hubard, Micael Toledo

摘要:

$k$ -轨道流形是在其自同构群的作用下具有标志的$k$轨道的流形。本文将映射的对称型图的概念推广到流形和多面体的对称型图,并利用它研究了$k$ -轨道流形和全传递3-流形。特别地,我们证明了不存在$k > 1$为奇数的完全传递的$k$ -轨道3-主丛,我们对3-轨道主丛进行了分类,并确定了3-和4-轨道主丛的所有面传递性.此外,我们给出了多面体或流形的自同构群的生成元,给定其对称型图。最后,我们将这些概念推广到有向多面体,特别是对有向2-轨道流形进行了分类,并给出了它们的保向自同构群的生成元。

英文摘要:

A $k$-orbit maniplex is one that has $k$ orbits of flags under the action of its automorphism group. In this paper we extend the notion of symmetry type graphs of maps to that of maniplexes and polytopes and make use of them to study $k$-orbit maniplexes, as well as fully-transitive 3-maniplexes. In particular, we show that there are no fully-transtive $k$-orbit 3-mainplexes with $k > 1$ an odd number, we classify 3-orbit mainplexes and determine all face transitivities for 3- and 4-orbit maniplexes. Moreover, we give generators of the automorphism group of a polytope or a maniplex, given its symmetry type graph. Finally, we extend these notions to oriented polytopes, in particular we classify oriented 2-orbit maniplexes and give generators for their orientation preserving automorphism group.

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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