Metacirculant tournaments whose order is a product of two distinct primes

Metacirculant tournaments whose order is a product of two distinct primes
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元循环锦标赛,其顺序是两个不同素数的乘积

DOI:
10.1016/j.disc.2010.12.021
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发表时间:
2011-05
影响因子:
0.8
通讯作者:
Xu, Jing
Xu, Jing
中科院分区:
数学3区
文献类型:
--
作者:
Xu, Jing

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本文证明了pq阶非循环点传递竞赛图是满足某些特殊条件的亚循环竞赛图(定义见定义2.1),见定理1.2。因此,结合徐静旭(2010)[11]的工作,得到了点传递PQ-竞赛的一个完全分类。作为副产品,我们构造了非Cayley点传递的PQ竞赛的例子,其中Q2|(p−1)在例子2.5中。此外,利用点传递PQ-竞赛的分类,我们确定了所有2-闭(Wielandt意义下)Pq次奇阶传递置换群,并证明了它们都是某个竞赛的全自同构群。
In this paper, we prove that non-circulant vertex-transitive tournaments of order pq, where p and q are distinct odd primes, are metacirculant tournaments (defined in Definition 2.1) satisfying some special conditions; see Theorem 1.2. So, in combination with the work in Jing Xu (2010) [11], a complete classification of vertex-transitive pq-tournaments is obtained. As a by-product, we construct examples of non-Cayley vertex-transitive pq-tournaments where q2|(p−1) in Example 2.5. Moreover, applying the classification of vertex-transitive pq-tournaments, we determine all 2-closed (in Wielandt’s sense) odd-order transitive permutation groups of degree pq and show that each of them is the full automorphism group of some tournament.
两个不同素数的乘积的顶点传递锦标赛
DOI: 10.1515/jgt.2010.007
发表时间: 2010
影响因子: 0.5
作者:
Xu, Jing
通讯作者: Xu, Jing
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