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Related papers: On the coefficients in the Jones-Wenzl idempotent

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The Jones-Wenzl idempotents of the Temperley-Lieb algebra are celebrated elements defined over characteristic zero and for generic loop parameter. Given pointed field $(R, \delta)$, we extend the existing results of Burrull, Libedinsky and…

Representation Theory · Mathematics 2022-04-28 Stuart Martin , R. A. Spencer

We produce an explicit recursive formula which computes the idempotent projecting to any indecomposable Soergel bimodule for a universal Coxeter system. This gives the exact set of primes for which the positive characteristic analogue of…

Representation Theory · Mathematics 2017-01-11 Ben Elias , Nicolas Libedinsky

Temperley-Lieb algebras have been generalized to web spaces for rank 2 simple Lie algebras. Using these webs, we find a complete description of the Jones-Wenzl idempotents for the quantum sl(3) and sp(4) by single clasp expansions. We…

General Topology · Mathematics 2011-05-05 Dongseok Kim

The Jones-Wenzl idempotents are elements of the Temperley-Lieb planar algebra that are important, but complicated to write down. We will present a new planar algebra, the pop-switch planar algebra, which contains the Temperley-Lieb planar…

Quantum Algebra · Mathematics 2015-01-21 Ellie Grano , Stephen Bigelow

Let p an integer. We define a family of idempotents (and nilpotents) in the Temperley - Lieb algebras at 4p-th roots of unity which generalize the usual Jones-Wenzl idempotents. These new idempotents correspond to finite dimentional simple…

Quantum Algebra · Mathematics 2016-04-14 Elsa Ibanez

When the parameter $q$ is a root of unity, the Temperley-Lieb algebra $TL_n(q)$ is non-semisimple for almost all $n$. Jones showed that there is a canonical symmetric bilinear form on $TL_n(q)$, whose radical $R_n(q)$ is generated by a…

Quantum Algebra · Mathematics 2017-02-28 K. Iohara , G. I. Lehrer , R. B. Zhang

For a prime number $p$ and any natural number $n$ we introduce, by giving an explicit recursive formula, the $p$-Jones-Wenzl projector ${}^p\operatorname{JW}_n$, an element of the Temperley-Lieb algebra $TL_n(2)$ with coefficients in…

Representation Theory · Mathematics 2019-05-30 Gaston Burrull , Nicolas Libedinsky , Paolo Sentinelli

The monoidal category of Soergel bimodules categorifies the Hecke algebra of a finite Weyl group. In the case of the symmetric group, morphisms in this category can be drawn as graphs in the plane. We define a quotient category, also given…

Representation Theory · Mathematics 2016-03-08 Ben Elias

When the parameter $q$ is a root of unity, the Temperley-Lieb algebra $TL_n(q)$ is non-semisimple for almost all $n$. In this work, using cellular methods, we give explicit generating functions for the dimensions of all the simple…

Representation Theory · Mathematics 2017-07-06 K. Iohara , G. I. Lehrer , R. B. Zhang

We realize the Temperley-Lieb algebra by analogues of Soergel bimodules. The key point is that the monoidal structure is not given by a usual tensor product but by a slightly more complicated operation.

Representation Theory · Mathematics 2013-11-12 Thomas Gobet

The Jones--Wenzl projections are a special class of elements of the Temperley--Lieb algebra. We prove that the coefficient appearing in the Jones--Wenzl projection is given by a generating function of combinatorial objects, called Dyck…

Combinatorics · Mathematics 2024-02-16 Keiichi Shigechi

I present a method of calculating the coefficients appearing in the Jones-Wenzl projections in the Temperley-Lieb algebras. It essentially repeats the approach of Frenkel and Khovanov published in 1997. I wrote this note mid-2002, not…

Quantum Algebra · Mathematics 2015-03-03 Scott Morrison

Let $G$ be a connected reductive algebraic group over a field of positive characteristic $p$ and denote by $\mathcal T$ the category of tilting modules for $G$. The higher Jones algebras are the endomorphism algebras of objects in the…

Representation Theory · Mathematics 2019-01-03 Henning Haahr Andersen

In this paper, we present an infinite dimensional associative diagram algebra that satisfies the relations of the generalized Temperley--Lieb algebra having a basis indexed by the fully commutative elements (in the sense of Stembridge) of…

Quantum Algebra · Mathematics 2024-02-12 Dana C. Ernst

We explain how to compute idempotents that correspond to the indecomposable objects in the Hecke category. Closed formulas are provided for some common coefficients that appear in these idempotents. We also explain how to compute…

Representation Theory · Mathematics 2025-07-15 Ben Elias , Liam Rogel , Daniel Tubbenhauer

We introduce a quotient of the affine Temperley-Lieb category that encodes all weight-preserving linear maps between finite-dimensional sl(2)-representations. We study the diagrammatic idempotents that correspond to projections onto…

Representation Theory · Mathematics 2017-01-11 Hoel Queffelec , Paul Wedrich

We study the relation between a coefficient of an element of the Jones--Wenzl projection in the Temperley--Lieb algebra of type $D$ and an enumeration of Dyck tilings. The coefficient can be non-recursively expressed as an enumerative…

Combinatorics · Mathematics 2024-12-24 Keiichi Shigechi

The Temperley-Lieb algebra may be thought of as a quotient of the Hecke algebra of type A, acting on tensor space as the commutant of the usual action of quantum sl(2) on the n-th tensor power of the 2-dimensional irreducible module. We…

Representation Theory · Mathematics 2008-06-05 G. I. Lehrer , R. B. Zhang

We use the Jones-Wenzl idempotents to construct a basis of Temperley-Lieb algebra TL_n. This allows a short calculation for a Gram determinant of Lickorish's bilinear form on the Temperley-Lieb algebra.

Geometric Topology · Mathematics 2021-06-29 Xuanting Cai

We show that coefficients in unicellular LLT polynomials are evaluations of Hecke algebra traces at Kazhdan-Lusztig basis elements. We express these in terms of traditional trace bases, induction, and Kazhdan-Lusztig R-polynomials.

Combinatorics · Mathematics 2024-06-25 Alejandro H. Morales , Mark A. Skandera , Jiayuan Wang
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