Macdonald deformation of Vogel's universality and link hyperpolynomials

Fuente: arXiv
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Main Authors: Bishler, Liudmila, Mironov, Andrei, Morozov, Alexei
Format: Preprint
Published: 2025
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author Bishler, Liudmila
Mironov, Andrei
Morozov, Alexei
author_facet Bishler, Liudmila
Mironov, Andrei
Morozov, Alexei
contents Vogel's universality implies a unified description of the adjoint sector of representation theory for simple Lie algebras in terms of three parameters $α,β,γ$, which are homogeneous coordinates of Vogel's plane. Actually this is true (if at all) only for a piece of representation theory captured by knot/Chern-Simons theory, where some irreducible representations are often undistinguishable and combined into new ``universally-irreducible" entities (uirreps). We consider from this point of view the recently discovered Macdonald deformation of quantum dimensions, for which a kind of universality holds for the ADE series. The claim is that universal are not Macdonald dimensions themselves, but their products with Littlewood-Richardson coefficients, which themselves are functions of $q$ and $t$ in Macdonald theory. These products are precisely what arises in knot/refined Chern-Simons theory. Actually, we consider the simplest decomposition of adjoint square into six uirreps and obtain the universal formulas for hyperpolynomials of the Hopf link and, more generally, of the torus links $T[2,2n]$.
format Preprint
id arxiv_https___arxiv_org_abs_2505_16569
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Macdonald deformation of Vogel's universality and link hyperpolynomials
Bishler, Liudmila
Mironov, Andrei
Morozov, Alexei
High Energy Physics - Theory
Mathematical Physics
Quantum Algebra
Vogel's universality implies a unified description of the adjoint sector of representation theory for simple Lie algebras in terms of three parameters $α,β,γ$, which are homogeneous coordinates of Vogel's plane. Actually this is true (if at all) only for a piece of representation theory captured by knot/Chern-Simons theory, where some irreducible representations are often undistinguishable and combined into new ``universally-irreducible" entities (uirreps). We consider from this point of view the recently discovered Macdonald deformation of quantum dimensions, for which a kind of universality holds for the ADE series. The claim is that universal are not Macdonald dimensions themselves, but their products with Littlewood-Richardson coefficients, which themselves are functions of $q$ and $t$ in Macdonald theory. These products are precisely what arises in knot/refined Chern-Simons theory. Actually, we consider the simplest decomposition of adjoint square into six uirreps and obtain the universal formulas for hyperpolynomials of the Hopf link and, more generally, of the torus links $T[2,2n]$.
title Macdonald deformation of Vogel's universality and link hyperpolynomials
topic High Energy Physics - Theory
Mathematical Physics
Quantum Algebra
url https://arxiv.org/abs/2505.16569