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An attempt is described to extend the notion of Schur functions from Young diagrams to plane partitions. The suggestion is to use the recursion in the partition size, which is easily generalized and deformed. This opens a possibility to…

High Energy Physics - Theory · Physics 2018-12-05 A. Morozov

We discuss several well known results about Schur functions that can be proved using cancellations in alternating summations; notably we shall discuss the Pieri and Murnaghan-Nakayama rules, the Jacobi-Trudi identity and its dual (Von…

Combinatorics · Mathematics 2007-05-23 Marc A. A. van Leeuwen

Cylindric Schur functions are a family of symmetric functions that generalize skew Schur functions. We give a short proof that skew cylindric Schur functions expand positively in terms of non-skew cylindric Schur functions. In particular,…

Combinatorics · Mathematics 2026-05-21 Alexander Dobner

This paper studies the bidiagonal factorization of the collocation matrices of analytic bases using symmetric functions. Explicit formulas for their initial minors are derived in terms of Schur functions. The structure of these formulas…

Combinatorics · Mathematics 2026-01-29 Pablo Díaz , Esmeralda Mainar

We introduce a new family of symmetric functions, which are $q$-analogues of products of Schur functions defined in terms of ribbon tableaux. These functions can be interpreted in terms of the Fock space representation of the quantum affine…

q-alg · Mathematics 2008-02-03 Alain Lascoux , Bernard Leclerc , Jean-Yves Thibon

We study k-Schur functions characterized by k-tableaux, proving combinatorial properties such as a k-Pieri rule and a k-conjugation. This new approach relies on developing the theory of k-tableaux, and includes the introduction of a…

Combinatorics · Mathematics 2007-05-23 Luc Lapointe , Jennifer Morse

We investigate the elliptic integrable model introduced by Deguchi and Martin, which is an elliptic extension of the Perk-Schultz model. We introduce and study a class of partition functions of the elliptic model by using the…

Mathematical Physics · Physics 2017-12-27 Kohei Motegi

We show that the shifted rank, or srank, of any partition $\lambda$ with distinct parts equals the lowest degree of the terms appearing in the expansion of Schur's $Q_{\lambda}$ function in terms of power sum symmetric functions. This gives…

Combinatorics · Mathematics 2008-05-20 William Y. C. Chen , Donna Q. J. Dou , Robert L. Tang , Arthur L. B. Yang

A set of functions is defined which is indexed by a positive integer $n$ and partitions of integers. The case $n=1$ reproduces the standard Schur polynomials. These functions are seen to arise naturally as a determinant of an action on the…

Algebraic Geometry · Mathematics 2007-05-23 Alex Kasman

We give a Littlewood-Richardson type rule for expanding the product of a row-strict quasisymmetric Schur function and a symmetric Schur function in terms of row-strict quasisymmetric Schur functions. This expansion follows from several new…

Combinatorics · Mathematics 2011-02-09 Jeffrey Ferreira

The tetrahedron equation introduced by Zamolodchikov is a three-dimensional generalization of the Yang-Baxter equation. Several types of solutions to the tetrahedron equation that have connections to quantum groups can be viewed as…

Mathematical Physics · Physics 2024-05-17 Shinsuke Iwao , Kohei Motegi , Ryo Ohkawa

Our results revolve around a new operation on partitions, which we call overlap. We prove two overlap identities for so-called Littlewood-Schur functions. Littlewood-Schur functions are a generalization of Schur functions, whose study was…

Combinatorics · Mathematics 2018-05-21 Helen Riedtmann

We show that, for a certain class of partitions and an even number of variables of which half are reciprocals of the other half, Schur polynomials can be factorized into products of odd and even orthogonal characters. We also obtain related…

Combinatorics · Mathematics 2019-02-07 Arvind Ayyer , Roger E. Behrend

Let $p_{-r}(n)$ denote the $r$-coloured partition function, and $\sigma(n)=\sum_{d|n}d$ denote the sum of positive divisors of $n$. The aim of this note is to prove the following $$…

General Mathematics · Mathematics 2020-08-10 Sumit Kumar Jha

For any positive integer $k$ and nonnegative integer $m$, we consider the symmetric function $G\left( k,m\right)$ defined as the sum of all monomials of degree $m$ that involve only exponents smaller than $k$. We call $G\left( k,m\right)$ a…

Combinatorics · Mathematics 2023-09-26 Darij Grinberg

The classical Littlewood-Richardson rule is a rule for computing coefficients in many areas, and comes in many guises. In this paper we prove two Littlewood-Richardson rules for symmetric skew quasisymmetric Schur functions that are…

Combinatorics · Mathematics 2015-09-14 Christine Bessenrodt , Vasu V. Tewari , Stephanie J. van Willigenburg

Motivated by a partition inequality of Bessenrodt and Ono, we obtain analogous inequalities for $k$-colored partition functions $p_{-k}(n)$ for all $k\geq2$. This enables us to extend the $k$-colored partition function multiplicatively to a…

Combinatorics · Mathematics 2017-12-21 Shane Chern , Shishuo Fu , Dazhao Tang

Given an element in a finite-dimensional real vector space, $V$, that is a nonnegative linear combination of basis vectors for some basis $B$, we compute the probability that it is furthermore a nonnegative linear combination of basis…

Combinatorics · Mathematics 2021-03-29 Rebecca Patrias , Stephanie van Willigenburg

The partition algebras are algebras of diagrams (which contain the group algebra of the symmetric group and the Brauer algebra) such that the multiplication is given by a combinatorial rule and such that the structure constants of the…

Representation Theory · Mathematics 2007-05-23 Tom Halverson , Arun Ram

We study the weighted partition function for lozenge tilings, with weights given by multivariate rational functions originally defined by Morales, Pak and Panova (2019) in the context of the factorial Schur functions. We prove that this…

Combinatorics · Mathematics 2020-09-10 Igor Pak , Fedor Petrov