Results 41 to 50 of about 34,720 (216)
Automorphisms of Cuntz-Krieger algebras [PDF]
, 2013 We prove that the natural homomorphism from Kirchberg's ideal-related KK-theory, KKE(e, e'), with one specified ideal, into Hom_{\Lambda} (\underline{K}_{E} (e), \underline{K}_{E} (e')) is an isomorphism for all extensions e and e' of separable, nuclear ...
Eilers, Søren +2 more
core +1 more source
The Automorphism Groups of Minimal Infinite Circulant Digraphs
European Journal of Combinatorics, 1997 Given a group \(G\), a directed graph \(X\) is called a digraph regular representation (DRR) of \(G\) if Aut\((X)\simeq G\) (as abstract groups) and the action of Aut\((X)\) on \(V(X)\) is that of a regular permutation group. It is well known that in this case \(X\) must be a Cayley digraph \(X(G,S)\) where \(S\subset G\) and \(\langle S\rangle=G ...
Meng, Jixiang, Qiongxing, Huang
openaire +1 more source
On groups with a central automorphism of infinite order [PDF]
Proceedings of the American Mathematical Society, 1992 It is shown that a group G G , whose center has finite exponent, has a central automorphism of infinite order if and only if G G has an infinite abelian direct factor. It is also shown that the group of central automorphisms of a nilpotent p p -group of infinite exponent contains an uncountable ...
Dixon, Martyn R., Evans, M. J.
openaire +1 more source
The Outer Automorphism Groups of Two-Generator One-Relator Groups with Torsion [PDF]
, 2015 The main result of this paper is a complete classification of the outer automorphism groups of two-generator, one-relator groups with torsion. To this classification we apply recent algorithmic results of Dahmani--Guirardel, which yields an algorithm to ...
Logan, Alan D.
core +3 more sources
On the Cone conjecture for Calabi-Yau manifolds with Picard number two
, 2013 Following a recent work of Oguiso, we calculate explicitly the groups of automorphisms and birational automorphisms on a Calabi-Yau manifold with Picard number two. When the group of birational automorphisms is infinite, we prove that the Cone conjecture
Lazić, Vladimir, Peternell, Thomas
core +1 more source
Isomorphisms between big mapping class groups
, 2018 We show that any isomorphism between mapping class groups of orientable infinite-type surfaces is induced by a homeomorphism between the surfaces. Our argument additionally applies to automorphisms between finite-index subgroups of these `big' mapping ...
Bavard, Juliette +2 more
core +1 more source
Automorphisms of the generalized Thompson's group Tn,r$T_{n,r}$
Transactions of the London Mathematical Society, 2022 The recent paper The further chameleon groups of Richard Thompson and Graham Higman: automorphisms via dynamics for the Higman groups Gn,r$G_{n,r}$ of Bleak, Cameron, Maissel, Navas and Olukoya (BCMNO) characterizes the automorphisms of the Higman ...
F. Olukoya
semanticscholar +1 more source
The Automorphism Tower of Groups acting on Rooted Trees
, 2006 The group of isometries W of a regular rooted tree, and many of its subgroups with branching structure, have groups of automorphisms induced by conjugation in W.
Bartholdi, Laurent, Sidki, Said N.
core +1 more source
DEFINABLY SIMPLE STABLE GROUPS WITH FINITARY GROUPS OF AUTOMORPHISMS [PDF]
Journal of Symbolic Logic (JSL), 2018 We prove that infinite definably simple locally finite groups of finite centraliser dimension are simple groups of Lie type over locally finite fields.
Ulla Karhumäki
semanticscholar +1 more source
Entropy rigidity for cusped Hitchin representations
Journal of Topology, Volume 19, Issue 1, March 2026.Abstract We establish an entropy rigidity theorem for Hitchin representations of geometrically finite Fuchsian groups which generalizes a theorem of Potrie and Sambarino for Hitchin representations of closed surface groups. In the process, we introduce the class of (1,1,2)‐hypertransverse groups and show for such a group that the Hausdorff dimension of
Richard Canary +2 more
wiley +1 more source