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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 initiate the systematic study of modular representations of symmetric groups that arise via the braiding in (symmetric) tensor categories over fields of positive characteristic. We determine what representations appear for certain…

Representation Theory · Mathematics 2026-03-09 Kevin Coulembier

Using the recoupling theory, we define a representation of the pure braid group and show that it is not trivial.

Geometric Topology · Mathematics 2023-04-14 V. O. Manturov , I. M. Nikonov

For an integer $n \geq 2$, set $B_n$ to be the braid group on $n$ strands and $SB_n$ to be the singular braid group on $n$ strands. $SB_n$ is one of the important group extensions of $B_n$ that appeared in 1998. Our aim in this paper is to…

Representation Theory · Mathematics 2025-04-15 Mohamad N. Nasser

We study representations of the braid groups from braiding gapped boundaries of Dijkgraaf-Witten theories and their twisted generalizations, which are (twisted) quantum doubled topological orders in two spatial dimensions. We show that the…

Quantum Algebra · Mathematics 2017-07-14 Nicolás Escobar-Velásquez , César Galindo , Zhenghan Wang

In this paper the author finds explicitly all finite-dimensional irreducible representations of a series of finite permutation groups that are homomorphic images of Artin braid group.

Representation Theory · Mathematics 2010-02-23 Valentin Vankov Iliev

In this paper we study irreducible matrix representations of the welded braid group $WB_n$, also known as the group of conjugating automorphisms of a free group $F_n.$ We prove that $WB_n$ has no irreducible representations of dimension…

Group Theory · Mathematics 2024-12-31 Inna Sysoeva

This paper introduces combinatorial representations, which generalise the notion of linear representations of matroids. We show that any family of subsets of the same cardinality has a combinatorial representation via matrices. We then…

Combinatorics · Mathematics 2011-09-07 Peter J. Cameron , Maximilien Gadouleau , Søren Riis

We study the centralizer of a braid from the point of view of Garside theory, showing that generically a minimal set of generators can be computed very efficiently, as the ultra summit set of a generic braid has a very particular structure.…

Group Theory · Mathematics 2018-02-15 Juan Gonzalez-Meneses , Dolores Valladares

We define a class of monoidal categories whose morphisms are diagrams, and which are enhancements and generalisations of the Brauer category obtained by adjoining infinitesimal braids, "coupons" and poles. Properties of these categories are…

Representation Theory · Mathematics 2024-04-02 Gustav Lehrer , Ruibin Zhang

We construct categorical braid group actions from 2-representations of a Heisenberg algebra. These actions are induced by certain complexes which generalize spherical (Seidel-Thomas) twists and are reminiscent of the Rickard complexes…

Representation Theory · Mathematics 2019-02-20 Sabin Cautis , Anthony Licata , Joshua Sussan

Complex braid groups are the natural generalizations of braid groups associated to arbitrary (finite) complex reflection groups. We investigate several methods for computing the homology of these groups. In particular, we get the Poincar\'e…

Algebraic Topology · Mathematics 2010-11-22 Filippo Callegaro , Ivan Marin

We introduce partial representation of a finite groupoid $G$ on an algebra $A$ and show that the partial groupoid representations of $G$ are in one-to-one correspondence with the representations of the algebra generated by the Birget-Rhodes…

Rings and Algebras · Mathematics 2023-04-04 Wesley G. Lautenschlaeger , Thaísa Tamusiunas

Based on a normal form for braid group elements suggested by Dehornoy, we prove several representations of braid groups by automorphisms of a free group to be faithful. This includes a simple proof of the standard Artin's representation…

Group Theory · Mathematics 2007-05-23 Vladimir Shpilrain

We develop a new, group-theoretic approach to bounding the exponent of matrix multiplication. There are two components to this approach: (1) identifying groups G that admit a certain type of embedding of matrix multiplication into the group…

Group Theory · Mathematics 2012-03-15 Henry Cohn , Christopher Umans

We describe a new technique to obtain representations of the braid group B_n from the R-matrix of a quantum deformed algebra of the one dimensional harmonic oscillator. We consider the action of the R-matrix not on the tensor product of…

Quantum Algebra · Mathematics 2016-11-23 Marco Tarlini

We claim that the recently discovered universal-matrix precursor for the $F$ functions, which define the differential expansion of colored polynomials for twist and double braid knots, can be extended from rectangular to non-rectangular…

High Energy Physics - Theory · Physics 2019-06-25 A. Morozov

In this paper we introduce a strict monoidal subcategory of the category of matrices, suitable to address a higher representation theoretic analogue of radicals (non-semisimplicity) in ordinary representation theory. We show the extent to…

Quantum Algebra · Mathematics 2026-01-27 Paul P Martin , Sarah Almateari , Eric C Rowell

Generalizing work of Marin [12], we construct in a unified way all the "braids and ties'' algebras available in literature and new ones.

Rings and Algebras · Mathematics 2025-11-26 Riccardo Fasano , Domenico Fiorenza , Paolo Papi

It is known, since works of Burde and de Rham, that one can detect the roots of the Alexander polynomial of a knot by the study of the representations of the knot group into the group of the invertible upper triangular $2x2$ matrices. In…

Geometric Topology · Mathematics 2009-08-09 Hajer Jebali