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We classify braided generalized near-group fusion categories whose global dimension is not an integer; there are exactly two up to Grothendieck equivalence and taking products with braided pointed fusion categories.

Quantum Algebra · Mathematics 2022-12-29 Andrew Schopieray

Configuration spaces of distinct labeled points on the plane are of practical relevance in designing safe control schemes for Automated Guided Vehicles (robots) in industrial settings. In this announcement, we consider the problem of the…

Geometric Topology · Mathematics 2007-05-23 Robert Ghrist

Let B_n(RP^2)$ (respectively P_n(RP^2)) denote the braid group (respectively pure braid group) on n strings of the real projective plane RP^2. In this paper we study these braid groups, in particular the associated pure braid group short…

Algebraic Topology · Mathematics 2014-10-01 Daciberg Lima Goncalves , John Guaschi

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 consider Thompson's groups from the perspective of mapping class groups of surfaces of infinite type. This point of view leads us to the braided Thompson groups, which are extensions of Thompson's groups by infinite (spherical) braid…

Group Theory · Mathematics 2013-10-25 Louis Funar , Christophe Kapoudjian , Vlad Sergiescu

A braided generalization of the concept of Hopf algebra (quantum group) is presented. The generalization overcomes an inherent geometrical inhomogeneity of quantum groups, in the sense of allowing completely pointless objects. All…

q-alg · Mathematics 2008-02-03 Mico Durdevic

We study simple branched coverings of degree d of the 2- and 3- dimensional sphere branched over oriented links. We demonstrate how to use braid charts to develop embeddings of these into $S^k \times D^2$ for $k=2,3 when $d=2,3$. This is an…

Geometric Topology · Mathematics 2012-06-22 J. Scott Carter , Seiichi Kamada

In this paper, we present a number of examples of k-nets, which are special configurations of lines and points in the projective plane. Such a configuration can be regarded as the union of k completely reducible elements of a pencil of…

Algebraic Geometry · Mathematics 2007-05-23 Janis Stipins

This paper will appear in the Santa Cruz proceedings. An overview of the braid group techniques in the theory of algebraic surfaces, from Zariski to the latest results, is presented. An outline of the Van Kampen algorithm for computing…

alg-geom · Mathematics 2008-02-03 Mina Teicher

We study the large-scale geometry of graph braid groups $\mathbb{B}_n(\mathsf{\Gamma})$, viewed as the fundamental groups of discrete configuration spaces $UD_n(\mathsf{\Gamma})$, which are special cube complexes in the sense of…

Geometric Topology · Mathematics 2026-03-25 Byung Hee An , Sangrok Oh

Using the concept of projective systems for linear codes and elementary linear algebra, we show that projective $[n,k]_q$ codes form a connected subgraph in the Grassmann graph consisting of $k$-dimensional subspaces of an $n$-dimensional…

Combinatorics · Mathematics 2020-04-17 Mark Pankov

The role of quantum groups and braid groups in the description of Standard Model particles is discussed. Some recent results on the use of the quantum group $SU_q(3)$ as a flavour symmetry are reviewed and a connection between two…

General Physics · Physics 2017-11-27 Niels G. Gresnigt

The orbifold braid groups of two dimensional orbifolds were defined in [1] (arXiv:math/9907194) to understand certain Artin groups as subgroups of some suitable orbifold braid groups. We studied orbifold braid groups in some more detail in…

Group Theory · Mathematics 2023-09-08 S. K. Roushon

We construct finite-dimensional projective representations of the mapping class groups of compact connected oriented surfaces having one boundary component using stated skein algebras.

Quantum Algebra · Mathematics 2022-08-29 Julien Korinman

Cobordism groups of cooriented fold maps of codimension 1 are computed completely. Namely their odd torsion part coincides with that of the stable homotopy group of spheres in the same dimension, while the 2-primary part is the kernel of…

Geometric Topology · Mathematics 2011-08-11 András Szűcs

We consider the group of unrestricted virtual braids, describe its structure and explore its relations with fused links. Also, we define the groups of flat virtual braids and virtual Gauss braids and study some of their properties, in…

Geometric Topology · Mathematics 2016-03-04 Valeriy Bardakov , Paolo Bellingeri , Celeste Damiani

We investigate the braid group representations arising from categories of representations of twisted quantum doubles of finite groups. For these categories, we show that the resulting braid group representations always factor through finite…

Quantum Algebra · Mathematics 2008-04-16 Pavel Etingof , Eric C. Rowell , Sarah Witherspoon

We unify and generalize several approaches to constructing braid group representations from finite groups, using iterated twisted tensor products. Our results hint at a relationship between the braidings on the $G$-gaugings of a pointed…

Quantum Algebra · Mathematics 2019-06-20 Paul Gustafson , Andrew Kimball , Eric C. Rowell , Qing Zhang

We provide a characterization for multitwists satisfying the braid relation in the mapping class group of an orientable surface.

Geometric Topology · Mathematics 2025-11-05 Rodrigo de Pool

This work presents an approach towards the representation theory of the braid groups $B_n$. We focus on finite-dimensional representations over the field of Laurent series which can be obtained from representations of infinitesimal braids,…

Representation Theory · Mathematics 2007-05-23 Ivan Marin