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Related papers: Unrestricted virtual braids and crystallographic b…

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Let $UVB_n$ and $UVP_n$ be the unrestricted virtual braid group and the unrestricted virtual pure braid group on n strands respectively. We study the groups $UVB_n$ and $UVP_n$, and our main results are as follows: for $n\geq 5$, we give a…

Geometric Topology · Mathematics 2022-10-21 Stavroula Makri

Let $n\geq 2$. Let $VB_n$ (resp. $VP_n$) denote the virtual braid group (resp. virtual pure braid group), let $WB_n$ (resp. $WP_n$) denote the welded braid group (resp. welded pure braid group) and let $UVB_n$ (resp. $UVP_n$) denote the…

Group Theory · Mathematics 2025-11-06 Karel Dekimpe , Daciberg Lima Gonçalves , Oscar Ocampo

Let $n\ge 2$. Let $VB_n$ (resp. $VP_n$) be the virtual braid group (resp. the pure virtual braid group), and let $VT_n$ (resp. $PVT_n$) be the virtual twin group (resp. the pure virtual twin group). Let $\Pi$ be one of the following…

Group Theory · Mathematics 2023-06-05 Oscar Ocampo , Paulo Cesar Cerqueira dos Santos Júnior

The virtual braid group $VB_n$, the virtual twin group $VT_n$ and the virtual triplet group $VL_n$ are extensions of the symmetric group $S_n$, which are motivated by the Alexander-Markov correspondence for virtual knot theories. The…

Group Theory · Mathematics 2024-06-11 Pravin Kumar , Tushar Kanta Naik , Neha Nanda , Mahender Singh

We introduce the universal virtual braid group $UV_n(c)$, which provides a unified algebraic framework for virtual braid--type structures with $c$ types of crossings and admits natural quotient maps onto the standard families in the…

Group Theory · Mathematics 2026-04-10 Oscar Ocampo

We show that the virtual singular braid monoid on $n$ strands embeds in a group $VSG_n$, which we call the virtual singular braid group on $n$ strands. The group $VSG_n$ contains a normal subgroup $VSPG_n$ of virtual singular pure braids.…

Geometric Topology · Mathematics 2025-11-14 Carmen Caprau , Antonia Yeung

In this paper we study some subgroups and their decompositions in semi-direct product of the twisted virtual braid group $TVB_n$. In particular, the twisted virtual pure braid group $TVP_n$ is the kernel of an epimorphism of $TVB_n$ onto…

Group Theory · Mathematics 2023-10-09 Valeriy G. Bardakov , Tatyana A. Kozlovskaya , Komal Negi , Madeti Prabhakar

In the present paper the representation of the virtual braid group $VB_n$ into the automorphism group of free product of the free group and free abelian group is constructed. This representation generalizes the previously constructed ones.…

Algebraic Topology · Mathematics 2016-03-07 V. G. Bardakov , Yu. A. Mikhalchishina , M. V. Neshchadim

Let n be greater than or equal to 3. We study the quotient group B\_n/[P n,P\_n] of the Artin braid group B\_n by the commutator subgroup of its pure Artin braid group P\_n. We show that B\_n/[P n,P\_n] is a crystallographic group, and in…

Group Theory · Mathematics 2015-03-17 Daciberg Lima Gonçalves , John Guaschi , Oscar Ocampo

The virtual singular braid group arises as a natural common generalization of classical singular braid groups and virtual braid groups. In this paper, we study several algebraic properties of the virtual singular braid group $VSG_n$. We…

Group Theory · Mathematics 2026-04-10 Oscar Ocampo

In the present paper we study structural aspects of certain quotients of braid groups and virtual braid groups. In particular, we construct and study linear representations $B_n\to {\rm GL}_{n(n-1)/2}\left(\mathbb{Z}[t^{\pm1}]\right)$,…

Group Theory · Mathematics 2021-07-09 V. Bardakov , I. Emel'yanenkov , M. Ivanov , T. Kozlovskaya , T. Nasybullov , A. Vesnin

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

The necklace braid group $\mathcal{NB}_n$ is the motion group of the $n+1$ component necklace link $\mathcal{L}_n$ in Euclidean $\mathbb{R}^3$. Here $\mathcal{L}_n$ consists of $n$ pairwise unlinked Euclidean circles each linked to an…

Quantum Algebra · Mathematics 2019-05-22 Alex Bullivant , Andrew Kimball , Paul Martin , Eric C. Rowell

In this paper, we examine specific submonoids within the singular twisted virtual braid monoid $STVB_n$. Notably, we establish that the singular twisted virtual pure braid monoid $STVP_n$ serves as the kernel of an epimorphism from $STVB_n$…

Group Theory · Mathematics 2025-02-14 Prabhakar Madeti , Komal Negi

This article is dedicate to cabling on virtual braids. This construction gives a new generating set for the virtual pure braid group $VP_n$. Consequently we describe $VP_4$ as HNN-extension. As an application to classical braids, we find a…

Group Theory · Mathematics 2019-05-21 Valeriy G. Bardakov , Jie Wu

We introduce linear representations of the universal virtual braid group $UV_n(c)$, where $n\geq 2$ and $c\geq 1$, which is a unifying framework for braid-type groups with multiple types of crossings. We classify and study its complex…

Representation Theory · Mathematics 2026-04-22 Mohamad N. Nasser , Oscar Ocampo

By exploring simplicial structure of pure virtual braid groups, we give new connections between the homotopy groups of the 3-sphere and the virtual braid groups that are related to the theory of Brunnian virtual braids. The group structure…

Algebraic Topology · Mathematics 2018-08-30 Valeriy G. Bardakov , Roman Mikhailov , Jie Wu

We prove that, for $n\geq 3$, the minimal dimension of a model of the classifying space of the full braid group $B_n$, and of the pure braid group $P_n$, with respect to the family of virtually cyclic groups is $n$.

Algebraic Topology · Mathematics 2018-02-12 Ramón Flores , Juan González-Meneses

We study the algebraic structures of the virtual singular braid monoid, $VSB_n$, and the virtual singular pure braid monoid, $VSP_n$. The monoid $VSB_n$ is the splittable extension of $VSP_n$ by the symmetric group $S_n$. We also construct…

Geometric Topology · Mathematics 2022-04-19 Carmen Caprau , Sarah Zepeda

There is a well known injective homomorphism $\phi:{\mathcal {B}}_n \rightarrow {\rm Aut}(F_n)$ from the classical braid group ${\mathcal {B}}_n$ into the automorphism group of the free group $F_n$, first described by Artin. This…

Quantum Algebra · Mathematics 2015-06-03 Oleg Chterental
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