Results 91 to 100 of about 5,646,983 (176)
Quantum automorphism groups of trees
We give a characterization of quantum automorphism groups of trees. In particular, for every tree, we show how to iteratively construct its quantum automorphism group using free products and free wreath products.
Roberson, David E. +4 more
core +1 more source
A note on one-parameter groups of automorphisms
International Journal of Mathematics and Mathematical Sciences, 1990 Let {αt:t∈R} and {βt:t∈R} be two commuting one-parameter groups of ∗-automorphisms of a von Neumann algebra M such that αt+α−t=βt+β−t for all t∈R. The purpose of this note is to provide a simple and short proof of the central decomposition result: αt=βt ...
A. B. Thaheem, Noor Mohammad
doaj +1 more source
Automorphism Groups of Quandles
, 2011 This thesis arose from a desire to better understand the structures of automorphism groups and inner automorphism groups of quandles. We compute and give the structure of the automorphism groups of all dihedral quandles.
Macquarrie, Jennifer
core
Mapping class groups and outer automorphism groups of free groups are C*-simple
, 2003 We prove that the reduced C*-algebras of centerless mapping class groups and outer automorphism groups of free groups are simple, as are the irreducible pure subgroups of mapping class groups and the analogous subgroups of outer automorphism groups of ...
Bridson, Martin, Bridson, MR, Harpe, PDL
core +2 more sources
Distal Automorphism-Groups of Lie-Groups
, 1981 Abels H. Distal Automorphism-Groups of Lie-Groups. Journal für die Reine und Angewandte Mathematik.
Abels, Herbert
core
Tree actions of automorphism groups
, 2000 We introduce conditions on a group action on a tree that are sufficient for the action to extend to the automorphism group. We apply this to two different classes of one-relator groups: certain Baumslag-Solitar groups and one-relator groups with centre ...
Raptis, E +3 more
core +1 more source
The discriminant controls automorphism groups of noncommutative algebras
, 2015 We use the discriminant to determine the automorphism groups of some noncommutative algebras, and we prove that a family of noncommutative algebras has tractable automorphism groups. (C) 2014 Elsevier Inc.
Zhang, J. J. +3 more
core +1 more source
Mapping spaces and automorphism groups of toric noncommutative spaces. [PDF]
Lett Math Phys, 2017 Barnes GE, Schenkel A, Szabo RJ.
europepmc +1 more source
Quantum automorphism groups of $2$-graphs [PDF]
We formulate a notion of the quantum automorphism groups of $2$-graphs. We show that two isomorphic $2$-graphs have isomorphic quantum automorphism groups making the notion well-defined. We compute the quantum automorphism groups of a few $2$-graphs.
Joardar, Soumalya, Rahaman, Atibur
core
Automorphism groups of combinatorial Hantzsche-Wendt groups [PDF]
Combinatorial Hantzsche-Wendt groups were introduced by W. Craig and P.A. Linnell. Every such a group $G_n$, where $n$ is a natural number, encodes the holonomy action of any $n+1$-dimensional Hantzsche-Wendt manifold.
Lutowski, Rafał +2 more
core +1 more source