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Related papers: An introduction to right-angled Artin groups

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We provide an explicit presentation of the automorphism group of an edge-separated CLTTF Artin group.

Group Theory · Mathematics 2022-01-10 Byung Hee An , Youngjin Cho

In this article, we consider qualified notions of geometric finiteness in mapping class groups called parabolically geometrically finite (PGF) and reducibly geometrically finite (RGF). We examine several constructions of subgroups and…

Geometric Topology · Mathematics 2025-09-16 Tarik Aougab , Harrison Bray , Spencer Dowdall , Hannah Hoganson , Sara Maloni , Brandis Whitfield

Cactus groups and their pure subgroups appear in various fields of mathematics and are currently attracting attention from diverse mathematical communities. They share similarities with both right-angled Coxeter groups and braid groups. In…

Group Theory · Mathematics 2022-12-08 Anthony Genevois

Many groups possess highly symmetric generating sets that are naturally endowed with an underlying combinatorial structure. Such generating sets can prove to be extremely useful both theoretically in providing new existence proofs for…

Group Theory · Mathematics 2010-04-22 Ben Fairbairn

We prove that every right-angled Artin group embeds into the $C^{\infty}$ diffeomorphism group of the real line. As a corollary, we show every limit group, and more generally every countable residually RAAG group, embeds into the…

Geometric Topology · Mathematics 2018-03-14 Hyungryul Baik , Sang-hyun Kim , Thomas Koberda

This article resolves several long-standing conjectures about Artin groups of euclidean type. In particular, we prove that every irreducible euclidean Artin group is a torsion-free centerless group with a decidable word problem and a…

Group Theory · Mathematics 2017-07-21 Jon McCammond , Robert Sulway

We show that the geometric realisation of the poset of proper parabolic subgroups of a large-type Artin group has a systolic geometry. We use this geometry to show that the set of parabolic subgroups of a large-type Artin group is stable…

Group Theory · Mathematics 2021-01-19 María Cumplido , Alexandre Martin , Nicolas Vaskou

Let $G$ and $G'$ be two right-angled Artin groups (RAAG). We show they are quasi-isometric iff they are isomorphic, under the assumption that $Out(G)$ and $Out(G')$ are finite. If only $Out(G)$ is finite, then $G'$ is quasi-isometric $G$…

Group Theory · Mathematics 2018-03-16 Jingyin Huang

We compute the BNS-invariant for the pure symmetric automorphism groups of right-angled Artin groups. We use this calculation to show that the pure symmetric automorphism group of a right-angled Artin group is itself not a right-angled…

Group Theory · Mathematics 2013-11-12 Nic Koban , Adam Piggott

We present some of the group theoretic properties of reversing symmetry groups, and classify their structure in simple cases that occur frequently in several well-known groups of dynamical systems.

Dynamical Systems · Mathematics 2008-01-19 Michael Baake , John A. G. Roberts

We characterize $k$--colorability of a simplicial graph via the intrinsic algebraic structure of the associated right-angled Artin group. As a consequence, we show that a certain problem about the existence of homomorphisms from…

Group Theory · Mathematics 2020-09-30 Ramón Flores , Delaram Kahrobaei , Thomas Koberda

The binary products of right, left or double division in semigroups that are semilattices of groups give interesting groupoid structures that are in one to one correspondence with semigroups that are semilattices of groups. This work is…

Rings and Algebras · Mathematics 2019-04-03 R. A. R. Monzo

The goal of this paper is to define a new class of objects which we call triple groups and to relate them with Cherednik's double affine Hecke algebras. This has as immediate consequences new descriptions of double affine Weyl and Artin…

Quantum Algebra · Mathematics 2009-09-29 Bogdan Ion , Siddhartha Sahi

In this monograph, we give an account of the relationship between the algebraic structure of finitely generated and countable groups and the regularity with which they act on manifolds. We concentrate on the case of one--dimensional…

Group Theory · Mathematics 2021-06-30 Sang-hyun Kim , Thomas Koberda

We prove some injectivity results: that a Coxeter monoid $\mathbb{Z}$-algebra (or $0$-Hecke algebra) injects in the incidence $\mathbb{Z}$-algebra of the corresponding Bruhat poset, for any Coxeter group; that the Hecke algebra of a…

Representation Theory · Mathematics 2021-02-25 Paolo Sentinelli

We prove by explicit construction that graph braid groups and most surface groups can be embedded in a natural way in right-angled Artin groups, and we point out some consequences of these embedding results. We also show that every…

Group Theory · Mathematics 2014-10-01 John Crisp , Bert Wiest

While finite type Artin groups and right-angled Artin groups are well-understood, little is known about more general Artin groups. In this paper we use the action of an infinite type Artin group $A_\Gamma$ on a CAT(0) cube complex to prove…

Group Theory · Mathematics 2018-06-04 Ruth Charney , Rose Morris-Wright

Semigroup C*-algebras for right-angled Artin monoids were introduced and studied by Crisp and Laca. In the paper at hand, we are able to present the complete answer to their question of when such C*-algebras are isomorphic. The answer to…

Operator Algebras · Mathematics 2014-09-24 Søren Eilers , Xin Li , Efren Ruiz

Artin groups of finite type are not as well understood as braid groups. This is due to the additional geometric properties of braid groups coming from their close connection to mapping class groups. For each Artin group of finite type, we…

Geometric Topology · Mathematics 2014-11-11 Mladen Bestvina

It is an open question whether right-angled Coxeter groups have unique group-equivariant visual boundaries. Croke and Kleiner present a right-angled Artin group with more than one visual boundary. In this paper we present a right-angled…

Group Theory · Mathematics 2016-11-25 Yulan Qing