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A number of properties of spherical Artin groups extend to Garside groups, defined as the groups of fractions of monoids where least common multiples exist, there is no nontrivial unit, and some additional finiteness conditions are…

Group Theory · Mathematics 2007-05-23 Patrick Dehornoy

In this note we give the quasi-isometry classification for a class of right angled Artin groups. In particular, we obtain the first such classification for a class of Artin groups with dimension larger than 2; our families exist in every…

Group Theory · Mathematics 2011-07-29 Jason A. Behrstock , Tadeusz Januszkiewicz , Walter D. Neumann

Given a finite graph G there is a corresponding group given by the presentation with generators the vertices of G and a relation [x,y]=1 for generators x and y precisely when (x,y) is an edge of G. Such groups are known as partially…

Group Theory · Mathematics 2007-07-03 Andrew J Duncan , Ilya V Kazachkov , Vladimir N Remeslennikov

We give very flexible, concrete constructions of discrete and faithful epresentations of right-angled Artin groups into higher-rank Lie groups. Using the geometry of the associated symmetric spaces and the combinatorics of the groups, we…

Group Theory · Mathematics 2014-10-01 Stephen Wang

In this article, we show that, for every $n \geq 2$, the pure virtual twin group $PVT_n$ can be naturally described as a symmetric diagram group, a family of groups introduced by V. Guba and M. Sapir and associated to semigroup…

Group Theory · Mathematics 2023-05-22 Paolo Bellingeri , Anthony Genevois , Neha Nanda

We characterize groups quasi-isometric to a right-angled Artin group $G$ with finite outer automorphism group. In particular all such groups admit a geometric action on a $CAT(0)$ cube complex that has an equivariant "fibering" over the…

Group Theory · Mathematics 2018-02-21 Jingyin Huang , Bruce Kleiner

Gonz{\'a}lez-Acu{\~n}a showed that Artin presentations characterize closed, orientable $3$-manifold groups. Winkelnkemper later discovered that each Artin presentation determines a smooth, compact, simply-connected $4$-manifold. We utilize…

Geometric Topology · Mathematics 2021-07-26 Jack S. Calcut , Jun Li

We study homomorphisms between XL-type Artin groups and show that, in a suitable sense, a generic Artin group is both hopfian and co-hopfian. For XL-type Artin groups over complete graphs, we describe all possible homomorphisms with…

Group Theory · Mathematics 2025-03-20 Martín Blufstein , Alexandre Martin , Nicolas Vaskou

In this doctoral thesis, we will determine the image of Artin groups associated to all finite irreducible Coxeter groups inside their associated finite Iwahori-Hecke algebra. This was done in type $A$ by Brunat, Magaard and Marin. The…

Representation Theory · Mathematics 2018-08-14 Alexandre Esterle

We compute the group homology, the algebraic $K$- and $L$-groups, and the topological $K$-groups of right-angled Artin groups, right-angled Coxeter groups, and more generally, graph products.

K-Theory and Homology · Mathematics 2021-05-28 Daniel Kasprowski , Kevin Li , Wolfgang Lück

This article is a survey on the braid groups, the Artin groups, and the Garside groups. It is a presentation, accessible to non-experts, of various topological and algebraic aspects of these groups. It is also a report on three points of…

Group Theory · Mathematics 2007-11-16 Luis Paris

We demonstrate that the submonoid membership problem and the rational subset membership problem are equivalent in Artin groups. Both these problem are undecidable in a given Artin group if and only if the group embeds the right-angled Artin…

Group Theory · Mathematics 2024-09-27 Islam Foniqi

We give a new and elementary proof of the nested Artin approximation Theorem for linear equations with algebraic power series coefficients. Moreover, for any Noetherian local subring of the ring of formal power series, we clarify the…

Commutative Algebra · Mathematics 2018-03-30 Francisco-Jesus Castro-Jiménez , Dorin Popescu , Guillaume Rond

By analyzing known presentations of the pure mapping groups of orientable surfaces of genus $g$ with $b$ boundary components and $n$ punctures, we show that these groups are isomorphic to some groups related to the braid groups and the…

Geometric Topology · Mathematics 2020-03-03 Ignat Soroko

The main goal of this note is to suggest an algebraic approach to the quasi-isometric classification of partially commutative groups (alias right-angled Artin groups). More precisely, we conjecture that if the partially commutative groups…

Group Theory · Mathematics 2018-03-02 Montserrat Casals-Ruiz

We define the braid groups of a two-dimensional orbifold and introduce conventions for drawing braid pictures. We use these to realize the Artin groups associated to the spherical Coxeter diagrams A_n, B_n=C_n and D_n and the affine…

Geometric Topology · Mathematics 2007-05-23 Daniel Allcock

According to the Tits conjecture proved by Crisp and Paris, [CP], the subgroups of the braid group generated by proper powers of the Artin elements are presented by the commutators of generators which are powers of commuting elements. Hence…

Group Theory · Mathematics 2009-04-10 Michael Lönne

Given a right-angled Artin group $G$ with finite outer automorphism group, we determine which right-angled Artin groups are measure equivalent (or orbit equivalent) to $G$.

Group Theory · Mathematics 2026-02-25 Camille Horbez , Jingyin Huang

We derive presentations of the interval groups related to all quasi-Coxeter elements in the Coxeter group of type $D_n$. Type $D_n$ is the only infinite family of finite Coxeter groups that admits proper quasi-Coxeter elements. The…

Group Theory · Mathematics 2022-02-07 Barbara Baumeister , Georges Neaime , Sarah Rees

We investigate restricted Lie algebras arising as analogues of (twisted) right-angled Artin groups and right-angled Coxeter groups over fields of characteristic two. These algebras are defined via quadratic relations determined by decorated…

Rings and Algebras · Mathematics 2026-04-22 Simone Blumer