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We give a commutative algebra viewpoint on Andrews recursive formula for the partitions appearing in "Gordon's identities", which are a generalization of Rogers-Ramanujan identities. Using this approach and differential ideals we conjecture…

Algebraic Geometry · Mathematics 2021-11-11 Pooneh Afsharijoo

Clifford-Legendre and Clifford-Gegenbauer polynomials are eigenfunctions of certain differential operators acting on functions defined on $m$-dimensional euclidean space ${\mathbb R}^m$ and taking values in the associated Clifford algebra…

Classical Analysis and ODEs · Mathematics 2020-12-11 Hamed Baghal Ghaffari , Jeffrey A. Hogan , Joseph D. Lakey

In a recent paper with Sahi and Stokman, we introduced quasi-polynomial generalizations of Macdonald polynomials for arbitrary root systems via a new class of representations of the double affine Hecke algebra. These objects depend on a…

Representation Theory · Mathematics 2025-11-04 Vidya Venkateswaran

In the algebraic metacomplexity framework we prove that the decomposition of metapolynomials into their isotypic components can be implemented efficiently, namely with only a quasipolynomial blowup in the circuit size. We use this to…

Computational Complexity · Computer Science 2025-02-10 Maxim van den Berg , Pranjal Dutta , Fulvio Gesmundo , Christian Ikenmeyer , Vladimir Lysikov

We formulate several polynomial identities. One side of these identities has a nice simple form. Whereas the other has a form of a polynomial whose coefficients contain binomial coefficients double factorials or (and) rising factorials. The…

Probability · Mathematics 2023-02-09 Paweł J. Szabłowski

We use geometry to prove a number of new identities among the Littlewood-Richardson coefficients for Schubert polynomials (Schubert classes in a flag manifold). For many of these identities, there is a companion result about the Bruhat…

alg-geom · Mathematics 2008-02-03 Nantel Bergeron , Frank Sottile

Following the method of combinatorial telescoping for alternating sums given by Chen, Hou and Mu, we present a combinatorial telescoping approach to partition identities on sums of positive terms. By giving a classification of the…

Combinatorics · Mathematics 2011-06-16 William Y. C. Chen , Daniel K. Du , Charles B. Mei

In this note we give a short proof of Cherednik's generalization of Macdonald-Mehta identities for the root system $A_{n-1}$ using the representation theory of quantum groups. These identities, suggested and proved by Cherednik, give an…

q-alg · Mathematics 2007-05-23 Pavel Etingof , Alexander Kirillov

In this paper we present a method to obtain deformations of families of matrix-valued orthogonal polynomials that are associated to the representation theory of compact Gelfand pairs. These polynomials have the Sturm-Liouville property in…

Classical Analysis and ODEs · Mathematics 2016-10-06 Maarten van Pruijssen , Pablo Román

We give a short proof of the inner product conjecture for the symmetric Macdonald polynomials of type $A_{n-1}$. As a special case, the corresponding constant term conjecture is also proved.

q-alg · Mathematics 2008-02-03 Katsuhisa Mimachi

We obtain new combinatorial formulae for modified Hall--Littlewood polynomials, for matrix elements of the transition matrix between the elementary symmetric functions and Hall-Littlewood's ones, and for the number of rational points over…

Quantum Algebra · Mathematics 2007-05-23 Anatol N. Kirillov

We derive an explicit sum formula for symmetric Macdonald polynomials. Our expression contains multiple sums over the symmetric group and uses the action of Hecke generators on the ring of polynomials. In the special cases $t=1$ and $q=0$,…

Combinatorics · Mathematics 2016-02-24 Jan de Gier , Michael Wheeler

We find new universal factorization identities for generalized Macdonald polynomials on the topological locus. We prove the identities (which include all previously known forumlas of this kind) using factorization identities for matrix…

High Energy Physics - Theory · Physics 2017-10-25 Yegor Zenkevich

It is shown that the deformed Macdonald-Ruijsenaars operators can be described as the restrictions on certain affine subvarieties of the usual Macdonald-Ruijsenaars operator in infinite number of variables. The ideals of these varieties are…

Quantum Algebra · Mathematics 2008-02-22 A. N. Sergeev , A. P. Veselov

We construct a family of pairwise commuting operators such that the Macdonald symmetric functions of infinitely many variables $x_1,x_2,...$ and of two parameters $q,t$ are their eigenfunctions. These operators are defined as limits at…

Combinatorics · Mathematics 2017-03-10 Maxim Nazarov , Evgeny Sklyanin

$q$-Analogues of the coefficients of $x^a$ in the expansion of $\prod_{j=1}^N (1+x+...+x^j)^{L_j}$ are proposed. Useful properties, such as recursion relations, symmetries and limiting theorems of the ``$q$-supernomial coefficients'' are…

q-alg · Mathematics 2008-02-03 Anne Schilling , S. Ole Warnaar

The Macdonald polynomials expanded in terms of a modified Schur function basis have coefficients called the $q,t$-Kostka polynomials. We define operators to build standard tableaux and show that they are equivalent to creation operators…

Combinatorics · Mathematics 2007-05-23 L. Lapointe , J. Morse

This work develops new foundations for the theory of linear codes over local Artinian commutative rings. We use algebraic invariants such as the socle, type, length, and minimal number of generators to measure the size of codes. We prove a…

This work provides explicit characterizations and formulae for the minimal polynomials of a wide variety of structured $4\times 4$ matrices. These include symmetric, Hamiltonian and orthogonal matrices. Applications such as the complete…

Mathematical Physics · Physics 2010-10-12 Viswanath Ramakrishna , Yassmin Ansari , Fred Costa

In 2018, Stanton proved two types of generalisations of the celebrated Andrews--Gordon and Bressoud identities (in their $q$-series version): one with a similar shape to the original identities, and one involving binomial coefficients. In…

Combinatorics · Mathematics 2025-07-18 Jehanne Dousse , Jihyeug Jang , Frédéric Jouhet