Results 251 to 260 of about 32,521 (269)

B Groups Acting on Trees

exaly   +2 more sources

An introduction to the local-to-global behaviour of groups acting on trees and the theory of local action diagrams

The primary tool for analysing groups acting on trees is Bass--Serre Theory. It is comprised of two parts: a decomposition result, in which an action is decomposed via a graph of groups, and a construction result, in which graphs of groups are used to ...
Colin D Reid, Simon M Smith, M R Quick
exaly   +1 more source

Rigidity of Branch Groups Acting on Rooted Trees

Geometriae Dedicata, 2002
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Lavreniuk, Yaroslav, Nekrashevych, Volodymyr   +1 more
openaire   +1 more source

Two-generated groups acting on trees

Archiv der Mathematik, 1999
Let \(G\) be a group acting on a simplicial tree \(T\) without inversions, and let the edge stabilizers be non-trivial. If \(g,h\in G\) generate \(G\) (\(\langle g,h\rangle=G\)) or if \(\langle g,h\rangle\) is neither cyclic nor a free product of cyclic groups, then it is proved that the pair \(\{g,h\}\) is Nielsen equivalent to \(\{f,s\}\) and some ...
Kapovich, Ilya, Weidmann, Richard
openaire   +2 more sources

Pro-p groups that act on profinite trees

Journal of Group Theory, 2008
This paper is concerned with second countable pro-\(p\) groups that act on a profinite tree with trivial edge stabilizers. The motivation for this work lies in the fact that the structure of an abstract group acting on a tree can often be described in terms of the stabilizers and edges of the tree, using the Bass-Serre theory.
openaire   +2 more sources

Abstract Commensurators of Groups Acting on Rooted Trees

Geometriae Dedicata, 2002
The author has previously constructed a family of finitely-presented, infinite, simple groups, each realized as the commutator subgroup of a group generated by a Higman-Thompson group and a group acting on a locally-finite, spherically-homogeneous tree. The current paper is motivated by the goal of obtaining a more algebraic description of these groups.
openaire   +2 more sources

Homomorphic images of locally compact groups acting on trees and buildings

Monatshefte Fur Mathematik, 2022
Max Carter, George A Willis
exaly  

Discrete and free groups acting on locally finite trees

Journal of Algebra, 2022
Matthew J Conder
exaly  

Groups acting on rooted trees

2022
openaire   +1 more source

Infinite characters on GL(Q), on SL (Z), and on groups acting on trees

Journal of Functional Analysis, 2019
Bachir Bekka
exaly