a groupn.组 a group of一组,一队,一群,一伙,一批… in a group成群结队地 group aphr. A型血 相似单词 automorphismn. 自守 anti automorphism【计】 反自同构 groupn.[C] 1.组,群,批,类,簇 2.集团 v.[I] 1.(使)成群、成组,聚集 2.将…分类,把…分组 ...
Denote by P(G) the probability that two elements of G, selected randomly and with replacement, commute, and by PA(G) the probability that a randomly chosen automorphism of G fixes a randomly chosen element of G. It is known that PA(G)≤5/8 for any nonabelian group. We show that PA...
So the main results are: "Centralizers of finite subgroups of automorphism groups of free groups of finite ranks are finitely presented". This combined with a result of McCool proves that: "Any finite extension of a free group of finite rank has a finitely presented automorphism group". To ...
Van CyrDepartment of Mathematics, Bucknell University, 1 Dent Drive, Lewisburg, PA 17837American Institute of Mathematical SciencesJournal of Modern DynamicsV. Cyr and B. Kra. The automorphism group of a minimal shift of stretched exponential growth. J. Mod. Dyn. 10:483 -495, 2016. 2...
automorphism of a ring 环的自同构 automorphism of a group 群的自同构 a ring 指环 seek a knot in a ring 想平地起风浪, 无事生非, 故意制造困难 endomorphism of a ring 环的自同态 generator of a ring 环的生成元 a basket ring n.篮(球)圈 ring a coin 敲响硬币查真伪 find a ...
For a groupoid (X,·) (in the sense of a set with a binary operation), the authors study its automorphism group as a permutation group of X endowed with a family (σ i ) i∈I of transformations of X associated with the orbits (X i ) i∈I such that each σ i commutes with th...
The automorphism group of the set of 12 points associated with an apolar system of conics is determined. A complete (q − 1)-arc for q = 13 can be obtained as a special case. The orbits of its automorphism group are also described. © 1994 John Wiley & Sons, Inc. Get PDF (698...
Define Automorphism group. Automorphism group synonyms, Automorphism group pronunciation, Automorphism group translation, English dictionary definition of Automorphism group. n the practice of seeing others as having the same characteristics as oneself C
The automorphism tower of a centerless group without ChoiceThe automorphism tower of a centerless group without Choicedoi:10.1007/s00153-009-0154-2Automorphismtower - AxiomofChoice - CenterlessgroupFor a centerless group G, we can define its automorphism tower. We define Gα : G0=G, G...
In this paper we find the structure for the automorphism group of a split metacyclic 2-group G . It can be seen as a continuation of the paper (Curran in Arch. Math. 89 (2007), 10–23) and it makes it complete. We propose a different approach to the problem than in the paper (...