A presentation for the category of $sl(3)$ webs and an extension of the quantum $sl(3)$-invariant to tangles

Fuente: arXiv
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Autore principale: Amarasinghe, Nipun
Natura: Preprint
Pubblicazione: 2025
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author Amarasinghe, Nipun
author_facet Amarasinghe, Nipun
contents We extend the $sl(3)$-polynomial invariant for links to tangles. Motivated by Kuperberg's construction of this invariant via planar trivalent graphs, we first define a category of $sl(3)$ webs and its sister linear category, and describe them via generators and relations. Then we define a functor from the category of oriented tangles to the linear category of $sl(3)$ webs, which yields an invariant for tangles and allows us to recover the $sl(3)$-polynomial invariant for links.
format Preprint
id arxiv_https___arxiv_org_abs_2506_11301
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle A presentation for the category of $sl(3)$ webs and an extension of the quantum $sl(3)$-invariant to tangles
Amarasinghe, Nipun
Geometric Topology
57K12 (Primary), 18M05 (Secondary)
We extend the $sl(3)$-polynomial invariant for links to tangles. Motivated by Kuperberg's construction of this invariant via planar trivalent graphs, we first define a category of $sl(3)$ webs and its sister linear category, and describe them via generators and relations. Then we define a functor from the category of oriented tangles to the linear category of $sl(3)$ webs, which yields an invariant for tangles and allows us to recover the $sl(3)$-polynomial invariant for links.
title A presentation for the category of $sl(3)$ webs and an extension of the quantum $sl(3)$-invariant to tangles
topic Geometric Topology
57K12 (Primary), 18M05 (Secondary)
url https://arxiv.org/abs/2506.11301