Diagrammatics for the smallest quantum coideal and Jones--Wenzl projectors

Fuente: arXiv
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Autori principali: Stroppel, Catharina, Wojciechowski, Zbigniew
Natura: Preprint
Pubblicazione: 2024
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author Stroppel, Catharina
Wojciechowski, Zbigniew
author_facet Stroppel, Catharina
Wojciechowski, Zbigniew
contents We describe algebraically, diagrammatically and in terms of weight vectors, the restriction of tensor powers of the standard representation of quantum $\mathfrak{sl}_2$ to a coideal subalgebra. We realise the category as module category over the monoidal category of type $\pm1$ representations in terms of string diagrams and via generators and relations. The idempotents projecting onto the quantized eigenspaces are described as type $B/D$ analogues of Jones--Wenzl projectors. As an application we introduce and give recursive formulas for analogues of $Θ$-networks.
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id arxiv_https___arxiv_org_abs_2406_12132
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Diagrammatics for the smallest quantum coideal and Jones--Wenzl projectors
Stroppel, Catharina
Wojciechowski, Zbigniew
Representation Theory
Combinatorics
Quantum Algebra
17B37, 22E46, 16T30, 20C08,
We describe algebraically, diagrammatically and in terms of weight vectors, the restriction of tensor powers of the standard representation of quantum $\mathfrak{sl}_2$ to a coideal subalgebra. We realise the category as module category over the monoidal category of type $\pm1$ representations in terms of string diagrams and via generators and relations. The idempotents projecting onto the quantized eigenspaces are described as type $B/D$ analogues of Jones--Wenzl projectors. As an application we introduce and give recursive formulas for analogues of $Θ$-networks.
title Diagrammatics for the smallest quantum coideal and Jones--Wenzl projectors
topic Representation Theory
Combinatorics
Quantum Algebra
17B37, 22E46, 16T30, 20C08,
url https://arxiv.org/abs/2406.12132