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Based on a generalized Newton's identity, we construct a family of symmetric functions which deform the modular Hall-Littlewood functions. We also give a determinant formula for the Macdonald functions.

Quantum Algebra · Mathematics 2015-09-15 Tommy Wuxing Cai , Naihuan Jing , Jian Zhang

We review a recent construction of an explicit analytic series representation for symmetric polynomials which up to a groundstate factor are eigenfunctions of Calogero-Sutherland type models. We also indicate a generalisation of this result…

Mathematical Physics · Physics 2008-04-24 Martin Hallnäs

In the basic representation of $U_q(\hat{sl}(2))$ realized via the algebra of symmetric functions we compare the canonical basis with the basis of Macdonald polynomials with $q=t^2$. We show that the Macdonald polynomials are invariant with…

Quantum Algebra · Mathematics 2007-05-23 Jonathan Beck , Igor Frenkel , Naihuan Jing

The main goal of this paper is to categorify the specialized parasymmetric (intermediate) Macdonald polynomials. These polynomials depend on a parabolic subalgebra of a simple Lie algebra and generalize the symmetric and nonsymmetric…

Representation Theory · Mathematics 2023-11-22 Evgeny Feigin , Anton Khoroshkin , Ievgen Makedonskyi

Macdonald processes are probability measures on sequences of partitions defined in terms of nonnegative specializations of the Macdonald symmetric functions and two Macdonald parameters q,t in [0,1). We prove several results about these…

Probability · Mathematics 2015-03-19 Alexei Borodin , Ivan Corwin

New set-theoretical solutions to the Yang-Baxter Relation are constructed. These solutions arise from the decompositions "in different order" of matrix polynomials and $\theta$-functions. We also construct a "local action of the symmetric…

Quantum Algebra · Mathematics 2007-05-23 Alexander Odesskii

We establish a connection between (degenerate) nonsymmetric Macdonald polynomials and standard bases and dual standard bases of maximal parabolic modules of affine Hecke algebras. Along the way we prove a (weak) polynomiality result for…

Quantum Algebra · Mathematics 2007-05-23 Bogdan Ion

We present an explicit formula for the transition matrix $\mathcal{C}$ from the type $C_n$ degeneration of the Koornwinder polynomials $P_{(1^r)}(x\,|\,a,-a,c,-c\,|\,q,t)$ with one column diagrams, to the type $C_n$ monomial symmetric…

Quantum Algebra · Mathematics 2018-09-21 Ayumu Hoshino , Jun'ichi Shiraishi

We introduce Macdonald characters and use algebraic properties of Macdonald polynomials to study them. As a result, we produce several formulas for Macdonald characters, which are generalizations of those obtained by Gorin and Panova in…

Representation Theory · Mathematics 2018-01-03 Cesar Cuenca

We consider expansions of products of theta-functions associated with arbitrary root systems in terms of nonsymmetric Macdonald polynomials at $t=\infty$ divided by their norms. The latter are identified with the graded characters of…

Representation Theory · Mathematics 2018-02-13 Ivan Cherednik , Syu Kato

We prove that supports of non-symmetric Macdonald polynomials are $M$-convex. As a consequence, we resolve a 2019 conjecture of Monical, Tokcan, and Yong that they have the saturated Newton polytope property. As a corollary we show that…

Combinatorics · Mathematics 2026-03-24 Milo Bechtloff Weising , Alexander E. Black

We discuss a product formula for $F$-polynomials in cluster algebras, and provide two proofs. One proof is inductive and uses only the mutation rule for $F$-polynomials. The other is based on the Fock-Goncharov decomposition of mutations.…

Combinatorics · Mathematics 2024-07-09 Feiyang Lin , Gregg Musiker , Tomoki Nakanishi

In this paper, we introduce higher rank generalizations of Macdonald polynomials. The higher rank non-symmetric Macdonald polynomials are Laurent polynomials in several sets of variables which form weight bases for higher rank polynomial…

Combinatorics · Mathematics 2025-02-18 Milo Bechtloff Weising

We construct special solutions to the rational quantum Knizhnik-Zamolodchikov equation associated with the Lie algebra $gl_N$. The main ingredient is a special class of the shifted non-symmetric Jack polynomials. It may be regarded as a…

Quantum Algebra · Mathematics 2009-01-27 Saburo Kakei , Michitomo Nishizawa , Yoshihisa Saito , Yoshihiro Takeyama

Products and sums of random matrices have seen a rapid development in the past decade due to various analytical techniques available. Two of these are the harmonic analysis approach and the concept of polynomial ensembles. Very recently, it…

Probability · Mathematics 2023-02-02 Mario Kieburg

We present a formula for trigonometric orthosymplectic $R$-matrices associated with any parity sequence, and establish their factorization into the ordered product of $q$-exponents parametrized by positive roots in the corresponding reduced…

Representation Theory · Mathematics 2026-05-18 Kyungtak Hong , Alexander Tsymbaliuk

We consider a natural $q$-deformation of the classical Markov numbers. This $q$-deformation is closely related to $q$-deformed rational numbers recently introduced by two of us. Both notions, those of $q$-rationals and $q$-Markov numbers,…

Combinatorics · Mathematics 2025-07-28 Sam Evans , Perrine Jouteur , Sophie Morier-Genoud , Valentin Ovsienko

We give an explicit, nonnegative formula for the expansion of nonsymmetric Macdonald polynomials specialized at $t=0$ in terms of Demazure characters. Our formula results from constructing Demazure crystals whose characters are the…

Combinatorics · Mathematics 2019-02-22 Sami Assaf , Nicolle Gonzalez

A fundamental result by L. Solomon in algebraic combinatorics and representation theory states that Mackey formulas for products of characters of a symmetric group, or equivalently the computation of tensor products of representations…

Combinatorics · Mathematics 2025-03-19 Loïc Foissy , Claudia Malvenuto , Frédéric Patras

Heckman and Opdam introduced a non-symmetric analogue of Jack polynomials using Cherednik operators. In this paper, we derive a simple recursion formula for these polynomials and formulas relating the symmetric Jack polynomials with the…

q-alg · Mathematics 2008-02-03 Friedrich Knop , Siddhartha Sahi