Results 111 to 120 of about 6,156 (235)

Thurston norm for coherent right‐angled Artin groups via L2$L^2$‐invariants

open access: yesJournal of Topology, Volume 19, Issue 2, June 2026.
Abstract We define a new notion of splitting complexity for a group G$G$ along a non‐trivial integral character ϕ∈H1(G;Z)$\phi \in H^1(G; \mathbb {Z})$. If G$G$ is a one‐ended coherent right‐angled Artin group, we show that the splitting complexity along an epimorphism ϕ:G→Z$\phi \colon G \rightarrow \mathbb {Z}$ equals the L2$L^2$‐Euler characteristic
Monika Kudlinska
wiley   +1 more source

Finite Abelian Groups via Congruences

open access: yesThe American Mathematical Monthly, 2023
For every finite abelian group $G$, there are positive integers $n$ and $d$ such that $G$ is isomorphic to the multiplicative group of $d$-th powers of reduced residues modulo $n$.
openaire   +2 more sources

Normal automorphisms of relatively hyperbolic groups

open access: yes, 2010
An automorphism of a group G is normal if it fixes every normal subgroup of G setwise. We give an algebraic description of normal automorphisms of relatively hyperbolic groups.
D. Osin   +3 more
core   +1 more source

A gap theorem for the ZL-amenability constant of a finite group [PDF]

open access: yesInternational Journal of Group Theory, 2016
It was shown in [A. Azimifard, E. Samei, N. Spronk, JFA 256 (2009)] that the ZL-amenability constant of a finite group is always at least~$1$, with equality if and only if the group is abelian. It was also shown in [A. Azimifard, E. Samei, N.
Yemon Choi
doaj  

On the Sequencing of Finite Groups [PDF]

open access: yes
openThis thesis explores the problem of determining which finite groups are sequenceable. After briefly reviewing the necessary background in group theory, we introduce the concept of group sequencing and examine several classes of groups, including both
MILAZZO, DAVID
core  

On abelian inner mapping groups of finite loops [PDF]

open access: yes, 2000
summary:In this paper we consider finite loops of specific order and we show that certain abelian groups are not isomorphic to inner mapping groups of these loops.
Niemenmaa, Markku
core  

On finite abelian groups realizable as Mislin genera [PDF]

open access: yes, 1997
We study the realizability of finite abelian groups as Mislin genera of finitely generated nilpotent groups with finite commutator subgroup. In particular, we give criteria to decide whether a finite abelian group is realizable as the Mislin genus of a ...
D. Scevenels   +3 more
core   +1 more source

Cohomology and the subgroup structure of a finite soluble group [PDF]

open access: yes
The main topic of this thesis is the discovery and study of a cohomological property of the subgroups called F-normalizers in finite soluble groups; namely, the property that with certain coefficient modules the restriction map in cohomology from a ...
Wilde, Thomas Stephen
core  

Groups of finite non-Abelian sectional rank

open access: yes, 1997
Вивчаються неабелеві локально скінченні і неабелеві локально розв'язні групи скінченного неабелевого секційного рангу і доводиться, що їх (спеціальний) ранг скінченний.We study non-Abelian locally finite groups and non-Abelian locally solvable groups of ...
Дашкова, О.Ю.
core   +1 more source

On the Hodge conjecture for products of certain surfaces [PDF]

open access: yes, 2003
In this thesis we prove the Hodge conjecture for products of smooth projective surfaces S(_1) x S(_2), where S(_2) = A is an Abelian surface and S (_1) is such that P(_g)(S(_1)) = 1, q = 2.
J. Ramón Marí, José   +1 more
core  

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