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In this paper, a connection between rewriting systems and embedding of monoids in groups is found. We show that if a group with a positive presentation has a complete rewriting system $\Re$ that satisfies the condition that each rule in…

Group Theory · Mathematics 2011-02-01 Fabienne Chouraqui

Every left-invariant ordering of a group is either discrete, meaning there is a least element greater than the identity, or dense. Corresponding to this dichotomy, the spaces of left, Conradian, and bi-orderings of a group are naturally…

Group Theory · Mathematics 2020-04-29 Adam Clay , Tessa Reimer

We consider a natural generalization of braids which we call shrinking braids. We state the relations of shrinking braids and use them to define algebraically the monoid $R$. We endow a subset of $R$ with a \emph{left distributive monoid}…

Group Theory · Mathematics 2020-12-03 Linjun Li

This article is about Artin's braid group and its role in knot theory. We set ourselves two goals: (i) to provide enough of the essential background so that our review would be accessible to graduate students, and (ii) to focus on those…

Geometric Topology · Mathematics 2007-05-23 Joan S. Birman , Tara E. Brendle

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

A result of Allock [1](arXiv:math/9907194) states that certain orbifold braid groups contain Artin groups of type $D_n$, $\tilde{B}_n$ and $\tilde{D}_n$ as finite index subgroups. The underlying orbifolds have at most two cone points of…

Group Theory · Mathematics 2023-12-19 Jonas Flechsig

We develop a theory of curve diagrams for Artin groups of type B. We define the winding number labeling and the wall crossing labeling of curve diagrams, and show that these labelings detect the classical and the dual Garside length,…

Group Theory · Mathematics 2014-05-09 Tetsuya Ito

A left orderable completely metrizable topological group is exhibited containing Artin's braid group on infinitely many strands. The group is the mapping class group (rel boundary) of the closed unit disk with a sequence of interior…

Geometric Topology · Mathematics 2007-05-23 Paul Fabel

We prove several results on the model theory of Artin groups, focusing on Artin groups which are ``far from right-angled Artin groups''. The first result is that if $\mathcal{C}$ is a class of Artin groups whose irreducible components are…

Logic · Mathematics 2025-07-30 Alberto Cassella , Gianluca Paolini , Giovanni Paolini

We construct long sequences of braids that are descending with respect to the standard order of braids (``Dehornoy order''), and we deduce that, contrary to all usual algebraic properties of braids, certain simple combinatorial statements…

Logic · Mathematics 2014-02-26 Lorenzo Carlucci , Patrick Dehornoy , Andreas Weiermann

Consider an element~$x$ of a Garside group which is rigid in the sense of Garside-theory. Let $SC(x)$ be the set of rigid conjugates of~$x$ -- this is a well-known characteristic subset of the conjugacy class of~$x$. We present…

Group Theory · Mathematics 2025-10-20 Matthieu Calvez , Owen Garnier , Juan González-Meneses , Bert Wiest

We describe a simple scheme for constructing finitely generated monoids in which left-divisibility is a linear ordering and for practically investigating these monoids. The approach is based on subword reversing, a general method of…

Group Theory · Mathematics 2012-05-09 Patrick Dehornoy

We give an alternate proof of the left-orderability of the mapping class group of a connected oriented infinite-type surface with a non-empty boundary. Our main strategy involves the inductive construction of a countable stable Alexander…

Geometric Topology · Mathematics 2024-08-13 Pravin Kumar , Apeksha Sanghi , Mahender Singh

We show that many $2$-dimensional Artin groups are residually finite. This includes $3$-generator Artin groups with labels $\geq 4$ except for $(2m+1, 4,4)$ for any $m\geq 2$. As a first step towards residual finiteness we show that these…

Group Theory · Mathematics 2022-05-10 Kasia Jankiewicz

In this paper a relation between iterated cyclings and iterated powers of elements in a Garside group is shown. This yields a characterization of elements in a Garside group having a rigid power, where 'rigid' means that the left normal…

Geometric Topology · Mathematics 2007-05-23 Joan S. Birman , Volker Gebhardt , Juan Gonzalez-Meneses

We prove that certain sequences of Artin monoids containing the braid monoid as a submonoid satisfy homological stability. When the $K(\pi,1)$ conjecture holds for the associated family of Artin groups this establishes homological stability…

Algebraic Topology · Mathematics 2020-05-06 Rachael Boyd

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

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 introduce the class of perturbed right-angled Artin groups. These are constructed by gluing Bieri double groups into standard right-angled Artin groups. As a first application of this construction we obtain families of CAT(0) groups…

Group Theory · Mathematics 2011-03-01 Noel Brady , Dan Guralnik , Sang Rae Lee

We study topological full groups attached to groupoid models for left regular representations of Garside categories. Groups arising in this way include Thompson's group $V$ and many of its variations such as R\"over-Nekrashevych groups. Our…

Operator Algebras · Mathematics 2024-10-15 Xin Li