On representations of the multi-virtual braid group $M_kVB_n$ and the multi-welded braid group $M_kWB_n$

Fuente: arXiv
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Auteurs principaux: Keshari, Vaibhav, Nasser, Mohamad N., Prabhakar, Madeti
Format: Preprint
Publié: 2025
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author Keshari, Vaibhav
Nasser, Mohamad N.
Prabhakar, Madeti
author_facet Keshari, Vaibhav
Nasser, Mohamad N.
Prabhakar, Madeti
contents This paper classifies complex homogeneous $2$-local representations of the multiple virtual braid group $M_kVB_n$ into $\mathrm{GL}_n(\mathbb{C})$ for $n\geq3$ and $k >1$, showing that such representations fall into exactly $2^{k+1}+1$ distinct types, out of which except three all are unfaithful. In addition, this paper investigates complex homogeneous $2$-local representations of the multiple welded braid group $M_kWB_n$ into $\mathrm{GL}_n(\mathbb{C})$ for $n\geq3$ and $k >1$, identifying $3 \cdot 2^{k-1} +1$ representations. Moreover, the article includes a construction of a non-local representation of $M_2WB_3$ that extends the known LKB representation of the braid group on $3$ strands, namely $B_3$, making a path towards constructing non-local representations of $M_kWB_n$ in general.
format Preprint
id arxiv_https___arxiv_org_abs_2508_04168
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On representations of the multi-virtual braid group $M_kVB_n$ and the multi-welded braid group $M_kWB_n$
Keshari, Vaibhav
Nasser, Mohamad N.
Prabhakar, Madeti
Representation Theory
General Topology
57K12, 20C99
This paper classifies complex homogeneous $2$-local representations of the multiple virtual braid group $M_kVB_n$ into $\mathrm{GL}_n(\mathbb{C})$ for $n\geq3$ and $k >1$, showing that such representations fall into exactly $2^{k+1}+1$ distinct types, out of which except three all are unfaithful. In addition, this paper investigates complex homogeneous $2$-local representations of the multiple welded braid group $M_kWB_n$ into $\mathrm{GL}_n(\mathbb{C})$ for $n\geq3$ and $k >1$, identifying $3 \cdot 2^{k-1} +1$ representations. Moreover, the article includes a construction of a non-local representation of $M_2WB_3$ that extends the known LKB representation of the braid group on $3$ strands, namely $B_3$, making a path towards constructing non-local representations of $M_kWB_n$ in general.
title On representations of the multi-virtual braid group $M_kVB_n$ and the multi-welded braid group $M_kWB_n$
topic Representation Theory
General Topology
57K12, 20C99
url https://arxiv.org/abs/2508.04168