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arXiv · 2404.18236

Unbounded $\mathfrak{sl}_3$-laminations around punctures

Tsukasa Ishibashi·Shunsuke Kano
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Abstract

We continue to study the unbounded $\mathfrak{sl}_3$-laminations [IK22], with a focus on their structures at punctures. A key ingredient is their relation to the root data of $\mathfrak{sl}_3$. After giving a classification of signed $\mathfrak{sl}_3$-webs around a puncture, we describe the tropicalization of the Goncharov--Shen's Weyl group action in detail. We also clarify the relationship with several other approaches by Shen--Sun--Weng [SSW23] and Fraser--Pylyavskyy [FP21]. Finally, we discuss a formulation of unbounded $\mathfrak{g}$-laminations for a general semisimple Lie algebra $\mathfrak{g}$ in brief.

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BibTeXRIS

Tsukasa Ishibashi, Shunsuke Kano. 2024-05-07. Unbounded $\mathfrak{sl}_3$-laminations around punctures. https://arxiv.org/abs/2404.18236

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