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We realize the integral Specht modules for the symmetric group $S_n$ as induced modules from the subalgebra of the group algebra generated by the Jucys-Murphy elements. We deduce from this that the simple modules for $FS_n$ are generated by…

Representation Theory · Mathematics 2012-09-06 Steen Ryom-Hansen

A complete system of primitive pairwise orthogonal idempotents for the Coxeter groups of type $B$ and, more generally, for the complex reflection groups $G(m,1,n)$ is constructed by a sequence of evaluations of a rational function in…

Representation Theory · Mathematics 2015-01-27 O. V. Ogievetsky , L. Poulain d'Andecy

We construct the Jucys-Murphy elements and the Jucys-Murphy basis for the $q$-Brauer algebra in the sense of Mathas[11]. We also give a necessary and sufficient condition for the $q$-Brauer algebra being (split) semisimple over an arbitrary…

Representation Theory · Mathematics 2022-11-29 Hebing Rui , Mei Si , Linliang Song

The purpose of this paper is to describe a general procedure for computing analogues of Young's seminormal representations of the symmetric groups. The method is to generalize the Jucys-Murphy elements in the group algebras of the symmetric…

Representation Theory · Mathematics 2009-09-25 Arun Ram

Commutative sets of Jucys-Murphyelements for affine braid groups of $A^{(1)},B^{(1)},C^{(1)},D^{(1)}$ types were defined. Construction of $R$-matrix representations of the affine braid group of type $C^{(1)}$ and its distinguish commutative…

Representation Theory · Mathematics 2016-05-04 A. P. Isaev , A. N. Kirillov , V. O. Tarasov

We give a new version of the fusion procedure for the symmetric group which originated in the work of Jucys and was developed by Cherednik. We derive it from the Jucys-Murphy formulas for the diagonal matrix units for the symmetric group.

Representation Theory · Mathematics 2015-06-26 A. I. Molev

This paper develops an abstract framework for constructing ``seminormal forms'' for cellular algebras. That is, given a cellular R-algebra A which is equipped with a family of JM-elements we give a general technique for constructing…

Representation Theory · Mathematics 2009-03-10 Andrew Mathas , Marcos Soriano

We give a new construction of primitive idempotents of the Hecke algebras associated with the symmetric groups. The idempotents are found as evaluated products of certain rational functions thus providing a new version of the fusion…

Quantum Algebra · Mathematics 2009-11-13 A. P. Isaev , A. I. Molev , A. F. Os'kin

The goal of the present paper is to provide a detailed study of irreducible representations of the algebra generated by the symmetries of the generic quantum superintegrable system on the $d$-sphere. Appropriately normalized, the symmetry…

Mathematical Physics · Physics 2018-02-09 Plamen Iliev

This paper proves a periodic property of Jucys-Murphy elements of the degenerate and non-degenerate cy- clotomic Hecke algebras of type A. We do this by first giving a new closed formula for the KLR idempotents e(i) which, it tuns out, is…

Representation Theory · Mathematics 2012-11-09 Ge Li

An inductive approach to the representation theory of cyclotomic Hecke algebras, inspired by Okounkov and Vershik, is developed. We study the common spectrum of the Jucys-Murphy elements using representations of the simplest affine Hecke…

Representation Theory · Mathematics 2012-06-19 O. V. Ogievetsky , L. Poulain d'Andecy

G. E. Murphy showed in 1983 that the centre of every symmetric group algebra has an integral basis consisting of a specific set of monomial symmetric polynomials in the Jucys--Murphy elements. While we have shown in earlier work that the…

Group Theory · Mathematics 2007-11-07 Andrew Francis , Lenny Jones

We produce Jucys-Murphy elements for the diagrammatical category of Soergel bimodules associated with general Coxeter groups, and use them to diagonalize the bilinear form on the cell modules. This gives rise to an expression for the…

Representation Theory · Mathematics 2020-08-12 S. Ryom-Hansen

We give a new fusion procedure for the Brauer algebra by showing that all primitive idempotents can be found by evaluating a rational function in several variables which has the form of a product of R-matrix type factors. In particular,…

Representation Theory · Mathematics 2012-10-03 A. P. Isaev , A. I. Molev , O. V. Ogievetsky

We describe the primitive central idempotents of the group algebra over a number field of finite monomial groups. We give also a description of the Wedderburn decomposition of the group algebra over a number field for finite strongly…

Representation Theory · Mathematics 2014-11-24 Gabriela Olteanu , Inneke Van Gelder

We describe a recursive algorithm that produces an integral basis for the centre of the Hecke algebra of type A consisting of linear combinations of monomial symmetric polynomials of Jucys--Murphy elements. We also discuss the existence of…

Representation Theory · Mathematics 2007-05-23 Andrew Francis , Lenny Jones

We study a commuting family of elements of the walled Brauer algebra $B_{r,s}(\delta)$, called the Jucys-Murphy elements, and show that the supersymmetric polynomials in these elements belong to the center of the walled Brauer algebra. When…

Representation Theory · Mathematics 2021-03-24 Ji Hye Jung , Myungho Kim

In this paper, we describe actions of standard generators on certain bases of simple modules for semisimple cyclotomic Hecke-Clifford superalgebras. As applications, we explicitly construct a complete set of primitive idempotents and…

Representation Theory · Mathematics 2026-01-05 Shuo Li , Lei Shi

This is an introduction to the group algebras of the symmetric groups, written for a quarter-long graduate course. After recalling the definition of group algebras (and monoid algebras) in general, as well as basic properties of…

Combinatorics · Mathematics 2025-07-29 Darij Grinberg

A complete system of primitive pairwise orthogonal idempotents for cyclotomic Hecke algebras is constructed by consecutive evaluations of a rational function in several variables on quantum contents of multi-tableaux. This function is a…

Representation Theory · Mathematics 2014-04-03 Oleg V. Ogievetsky , Loïc Poulain d'Andecy
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