𝔖 Bobbio Scriptorium
✦   LIBER   ✦

The Automorphism Groups of Minimal Infinite Circulant Digraphs

✍ Scribed by Jixiang Meng; Huang Qiongxing


Publisher
Elsevier Science
Year
1997
Tongue
English
Weight
187 KB
Volume
18
Category
Article
ISSN
0195-6698

No coin nor oath required. For personal study only.

✦ Synopsis


An infinite circulant digraph is a Cayley digraph of the cyclic group of Z of integers . Here we prove that the full automorphism group of any strongly connected infinite circulant digraph over minimal generating set is just the group of translations of Z . We also present some related conjectures .


πŸ“œ SIMILAR VOLUMES


Normal Minimal Cayley Digraphs of Abelia
✍ Jixiang Meng; Bao Ying πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 60 KB

A Cayley digraph X = Cay(G, S) is said to be normal for G if the regular representation R(G) of G is normal in the full automorphism group Aut(X ) of X . A characterization of normal minimal Cayley digraphs for abelian groups is given. In addition, the abelian groups, all of whose minimal Cayley dig

Digraphical Regular Representations of I
✍ R.G. MΓΆller; N. Seifter πŸ“‚ Article πŸ“… 1998 πŸ› Elsevier Science 🌐 English βš– 104 KB

A directed Cayley graph X is called a digraphical regular representation (DRR) of a group G if the automorphism group of X acts regularly on X . Let S be a finite generating set of the infinite cyclic group Z. We show that a directed Cayley graph X (Z, S) is a DRR of Z if and only if As a general r

Automorphisms of Coxeter Groups of Rank
✍ W.N. Franzsen πŸ“‚ Article πŸ“… 2002 πŸ› Elsevier Science 🌐 English βš– 138 KB

If W is a rank 3 Coxeter group, whose Coxeter diagram contains at least one infinite bond, then the automorphism group of W is larger than the group generated by the inner automorphisms and the automorphisms induced from automorphisms of the Coxeter diagram. In each case the automorphism group of W

Automorphisms of the Nottingham Group
✍ Benjamin Klopsch πŸ“‚ Article πŸ“… 2000 πŸ› Elsevier Science 🌐 English βš– 143 KB

Let K be a finite field of characteristic p β‰₯ 5. The Nottingham group over K is the group of normalised automorphisms of the local field K t . In this paper we determine the automorphism group of ; in particular we show that every automorphism of the Nottingham group is standard. We also give a comp