Classification of Homogeneous Local Representations of the Singular Braid Monoid

TL;DR

This paper extends the classification of homogeneous local representations from the braid group to the singular braid monoid, covering 2- and 3-local representations for various n, advancing understanding of their algebraic structures.

Contribution

It classifies all homogeneous 3-local representations of the braid group and all homogeneous 2- and 3-local representations of the singular braid monoid, generalizing previous results.

Findings

Classified all homogeneous 3-local representations of $B_n$ for $n \,\geq\, 4$.

Classified all homogeneous 2-local representations of $SM_n$ for $n \,\geq\, 2$.

Classified all homogeneous 3-local representations of $SM_n$ for $n \,\geq\, 4$.

Abstract

For a natural number $n$, denote by $B_n$ the braid group on $n$ strings and by $SM_n$ the singular braid monoid on $n$ strings. $SM_n$ is one of the most important extensions of $B_n$. In [13], Y. Mikhalchishina classified all homogeneous $2$-local representations of $B_n$ for all $n \geq 3$. In this article, we extend the result of Mikhalchishina in two ways. First, we classify all homogeneous $3$-local representations of $B_n$ for all $n \geq 4$. Second, we classify all homogeneous $2$-local representations of $SM_n$ for all $n\geq 2$ and all homogeneous $3$-local representations of $SM_n$ for all $n\geq 4$.