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We introduce in this paper the generalized virtual braid group on n strands GVB_n, generalizing simultaneously the braid groups and their virtual versions. A Mastumoto-Tits type section lifting shuffles in a symmetric group S_n to the…

量子代数 · 数学 2015-08-11 Xin Fang

Representations of braid group $B_n$ on $n \geq 2$ strands by automorphisms of a free group of rank $n$ go back to Artin (1925). In 1991 Kauffman introduced a theory of virtual braids and virtual knots and links. The virtual braid group…

几何拓扑 · 数学 2023-06-21 Bogdan Chuzhinov , Andrey Vesnin

In the paper, we construct a representation $\theta:FVB_n\to{\rm Aut}(F_{2n})$ of the flat virtual braid group $FVB_n$ on $n$ strands by automorphisms of the free group $F_{2n}$ with $2n$ generators which does not preserve the forbidden…

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.…

代数拓扑 · 数学 2016-03-07 V. G. Bardakov , Yu. A. Mikhalchishina , M. V. Neshchadim

The singular braids with $n$ strands, $n \geq 3$, were introduced independently by Baez and Birman. It is known that the monoid formed by the singular braids is embedded in a group that is known as singular braid group, denoted by $SG_n$.…

几何拓扑 · 数学 2019-01-23 Soumya Dey , Krishnendu Gongopadhyay

L. Kauffman (2024) introduced multi-virtual and symmetric multi-virtual braid groups, which are generalizations of the virtual braid group. We introduce multi-virtual pure and multi-virtual semi-pure braid groups, which are normal subgroups…

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…

群论 · 数学 2019-05-21 Valeriy G. Bardakov , Jie Wu

In this article we prove theorem on Lifting for the set of virtual pure braid groups. This theorem says that if we know presentation of virtual pure braid group $VP_4$, then we can find presentation of $VP_n$ for arbitrary $n > 4$. Using…

群论 · 数学 2020-02-21 Valeriy G. Bardakov , Jie Wu

In this article, we investigate various properties of the pure virtual braid group PV_3. From its canonical presentation, we obtain a free product decomposition of PV_3. As a consequence, we show that PV_3 is residually torsion free…

几何拓扑 · 数学 2009-06-10 V. G. Bardakov , R. Mikhailov , V. V. Vershinin , J. Wu

Virtual knots arise in the study of Gauss diagrams and Vassiliev invariants of usual knots. Virtual braids correspond naturally to virtual knots. We consider the group of virtual braids on n strings VB_n and its Burau representation, in…

几何拓扑 · 数学 2012-02-22 V. V. Vershinin

In the present paper we give a new method for converting virtual knots and links to virtual braids. Indeed the braiding method given in this paper is quite general, and applies to all the categories in which braiding can be accomplished. We…

几何拓扑 · 数学 2007-05-23 Louis H. Kauffman , Sofia Lambropoulou

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…

表示论 · 数学 2026-04-22 Mohamad N. Nasser , Oscar Ocampo

In this paper we prove a Markov Theorem for virtual braids and for some analogs of this structure. The virtual braid group is the natural companion in the category of virtual knots, just as the Artin braid group is the natural companion to…

几何拓扑 · 数学 2007-05-23 Louis H. Kauffman , Sofia Lambropoulou

We study the structure of the virtual braid group. It is shown that the virtual braid group is a semi--direct product of the virtual pure braid group and the symmetric group. Also, it is shown that the virtual pure braid group is a…

群论 · 数学 2007-05-23 Valerij G. Bardakov

Virtual singular braids are generalizations of singular braids and virtual braids. We define the virtual singular braid monoid via generators and relations, and prove Alexander- and Markov-type theorems for virtual singular links. We also…

几何拓扑 · 数学 2021-12-16 Carmen Caprau , Andrew de la Pena , Sarah McGahan

In this paper, we study the representations of the triplet group $L_n$, where $n$ is a positive integer, and its extensions to the virtual and welded triplet groups $VL_n$ and $WL_n$, respectively. We first introduce $L_n$, its extensions,…

表示论 · 数学 2026-02-10 Mohamad N. Nasser , Nafaa Chbili , Khaled Qazaqzeh

This paper gives a new interpretation of the virtual braid group in terms of a strict monoidal category SC that is freely generated by one object and three morphisms, two of the morphisms corresponding to basic pure virtual braids and one…

几何拓扑 · 数学 2015-03-19 Louis H. Kauffman , Sofia Lambropoulou

In this paper, we define the notion of a virtually symmetric representation of representations of virtual braid groups and prove that many known representations are equivalent to virtually symmetric. Using one such representation, we define…

几何拓扑 · 数学 2021-12-13 Valeriy G. Bardakov , Mikhail V. Neshchadim , Manpreet Singh

We define a group-valued invariant of virtual knots and relate it to various other group-valued invariants of virtual knots, including the extended group of Silver-Williams and the quandle group of Manturov and Bardakov-Bellingeri. A…

几何拓扑 · 数学 2017-07-14 Hans U. Boden , Robin Gaudreau , Eric Harper , Andrew J. Nicas , Lindsay White

In this paper, we introduce twisted virtual doodles, defined as stable equivalence classes of immersed circles on closed surfaces that may be non-orientable. These objects admit planar representative diagrams, considered up to a suitable…

几何拓扑 · 数学 2025-11-13 Komal Negi , Mahender Singh