English
Related papers

Related papers: On the sign representations for the complex reflec…

200 papers

For weighted group convoltion measure algebra we construct a representation on reflexsive space.

Functional Analysis · Mathematics 2016-02-19 Bahram Khodsiani , Ali Rejali

In this article, we present a combinatorial formula for computing the Wedderburn decomposition of the rational group algebra associated with an ordinary metacyclic $p$-group $G$, where $p$ is any prime. We also provide a formula for…

Representation Theory · Mathematics 2024-10-29 Ram Karan Choudhary , Sunil Kumar Prajapati

Let G be a complex connected reductive group. The representation ring R(G) admits a canonical filtration defined in terms of the lambda-structure. We compute the associated graded ring gr R(G) (over Q) and the Chern classes of a…

Algebraic Geometry · Mathematics 2007-05-23 Arnaud Beauville

We prove that a finite complex reflection group has a generalized involution model, as defined by Bump and Ginzburg, if and only if each of its irreducible factors is either $G(r,p,n)$ with $\gcd(p,n)=1$; $G(r,p,2)$ with $r/p$ odd; or…

Representation Theory · Mathematics 2011-04-20 Eric Marberg

We study the rational Cherednik algebra attached to the complex reflection group $G(r,1,2)$. Each irreducible representation $S^\lambda$ of $G(r,1,2)$ corresponds to a standard module $\Delta(\lambda)$ for the rational Cherednik algebra. We…

Representation Theory · Mathematics 2018-10-03 Armin Gusenbauer

Using the Burnside ring theoretic methods a new setting and a complete description of the Artin exponent $A(G)$ of finite $p$-groups was obtained in a previous article of the first-named author. In this paper, we compute $A(G)$ for any…

Representation Theory · Mathematics 2016-09-06 K. K. Nwabueze , F. Van Oystaeyen

We establish geodesic normal forms for the general series of complex reflection groups G(de,e,n) by using the presentations of Corran-Picantin and Corran-Lee-Lee of G(e,e,n) and G(de,e,n) for d > 1, respectively. This requires the…

Representation Theory · Mathematics 2018-10-30 Georges Neaime

The coinvariant algebra $R_n$ is a well-studied $\mathfrak{S}_n$-module that is a graded version of the regular representation of $\mathfrak{S}_n$. Using a straightening algorithm on monomials and the Garsia-Stanton basis, Adin, Brenti, and…

Combinatorics · Mathematics 2018-02-26 Kyle P. Meyer

We show that the braid group associated to the complex reflection group $G(d,d,n)$ is an index $d$ subgroup of the braid group of the orbifold quotient of the complex numbers by a cyclic group of order $d$. We also give a compatible…

Representation Theory · Mathematics 2024-12-18 Francesca Fedele , Bethany Rose Marsh

In the previous paper, we proposed a practical method of constructing explicitly representation groups $R(G)$ for finite groups $G$, and apply it to certain typical finite groups $G$ with Schur multiplier $M(G)$ containing prime number 3.…

Representation Theory · Mathematics 2024-08-30 Tatsuya Tsurii , Satoe Yamanaka , Itsumi Mikami , Takeshi Hirai

Let H1 be the complex reflection group of order 96. For the tensor products of faithful transitive permutation representations of H1, we determine the structures of the centralizer rings. This complements the work of Imamura-Kosuda-Oura.

Combinatorics · Mathematics 2025-07-29 Masashi Kosuda , Manabu Oura , Sarbaini

We introduce deformations of the space of (multi-diagonal) harmonic polynomials for any finite complex reflection group of the form W=G(m,p,n), and give supporting evidence that this space seems to always be isomorphic, as a graded…

Combinatorics · Mathematics 2010-11-17 François Bergeron , Nicolas Borie , Nicolas M. Thiéry

The goal of this paper is to lay the foundations for a combinatorial study, via orthogonal functions and intertwining operators, of category O for the rational Cherednik algebra of type G(r,p,n). As a first application, we give a…

Representation Theory · Mathematics 2008-08-23 Stephen Griffeth

In this article the zonal spherical functions of the Gelfand pair $(G(r,d,n), S_n)$ of complex reflection groups will be calculated. After this, a product formula for these spherical functions and a discrete analog of the Laplace operator…

Representation Theory · Mathematics 2020-12-01 Robin van Haastrecht

In this paper we define a two-variable, generic Hecke algebra, H, for each complex reflection group G(b,1,n). The algebra H specializes to the group algebra of G(b,1,n) and also to an endomorphism algebra of a representation of GL(n,q)…

Representation Theory · Mathematics 2010-09-20 S. I. Alhaddad , J. M. Douglass

In this paper, we consider the set of r-symbols in a full generality. We construct Hall-Littlewood functions and Kostka functions associated to those r-symbols. We also discuss a multi-parameter version of those functions. We show that…

Representation Theory · Mathematics 2019-09-17 Toshiaki Shoji

Projective re ection groups have been recently dened by the second author. They include a special class of groups denoted G(r; p; s; n) which contains all classical Weyl groups and more generally all the complex re ection groups of type…

Combinatorics · Mathematics 2011-01-20 Riccardo Biagioli , Fabrizio Caselli

We give the classification of all possible G-graphs for any small binary dihedral subgroup G in GL(2,C) and use this classification to give the combinatorial description of the special representations of G in terms of its maximal cyclic…

Algebraic Geometry · Mathematics 2012-08-09 Álvaro Nolla de Celis

We define a map from the set of conjugacy classes of a Weyl group W to the representation ring of W tensored with the ring of polynomials in one variable.

Representation Theory · Mathematics 2021-05-28 George Lusztig , Zhiwei Yun

We present the classification of reflective quadratic forms $-px_0^2+x_1^2+\ldots+x_n^2$ for $p$ prime. We show that for $p = 5$, it is reflective for $2\leq n\leq 8$, for $p = 7\text{ and }17$ it is reflective for $n = 2\text{ and }3$, for…

Group Theory · Mathematics 2017-02-23 Alice Mark