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Related papers: Expanding K-theoretic Schur Q-functions

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An algebraic interpretation of the one-variable quantum $q$-Krawtchouk polynomials is provided in the framework of the Schwinger realization of $\mathcal{U}_{q}(sl_{2})$ involving two independent $q$-oscillators. The polynomials are shown…

Mathematical Physics · Physics 2016-07-19 Vincent X. Genest , Sarah Post , Luc Vinet , Guo-Fu Yu , Alexei Zhedanov

We derive a bilinear expansion expressing elements of a lattice of KP $\tau$-functions, labelled by partitions, as a sum over products of pairs of elements of an associated lattice of BKP $\tau$-functions, labelled by strict partitions.…

Mathematical Physics · Physics 2021-03-30 J. Harnad , A. Yu. Orlov

We introduce two lifts of the dual immaculate quasisymmetric functions to the polynomial ring. We establish positive formulas for expansions of these dual immaculate slide polynomials into the fundamental slide and quasi-key bases for…

Combinatorics · Mathematics 2020-04-08 Sarah Mason , Dominic Searles

In this paper, we consstruct a new extended q-Bernoulli numbers and poly nomials. From these numbers, we derive the multiple zeta functions and give some relations between multiple Bernoulli numbers and multiple zeta functions.

Number Theory · Mathematics 2007-05-23 Y. Simsek , T. Kim , D. Kim

We describe a combinatorial formula for the coefficients when the dual immaculate quasisymmetric functions are decomposed into Young quasisymmetric Schur functions. We prove this using an analogue of Schensted insertion. Using this result,…

Combinatorics · Mathematics 2016-06-14 Edward E. Allen , Joshua Hallam , Sarah K. Mason

An expression is given for the plethysm $p_{2}\circ S_{\square}$, where $p_{2}$ is the power sum of degree two and $S_{\square}$ is the Schur function indexed by a rectangular partition. The formula can be well understood from the viewpoint…

Combinatorics · Mathematics 2007-05-23 Hiroshi Mizukawa , Hiro-Fumi Yamada

We define universal factorial Schur $P,Q$-functions and their duals, which specialize to generalized (co)-homology "Schubert basis" for loop spaces of the classical groups. We also investigate some of their properties.

Algebraic Topology · Mathematics 2018-12-11 Masaki Nakagawa , Hiroshi Naruse

Recently, Blasiak-Morse-Seelinger introduced symmetric functions called Katalan functions, and proved that the $K$-theoretic $k$-Schur functions due to Lam-Schilling-Shimozono form a subfamily of the Katalan functions. They conjectured that…

Combinatorics · Mathematics 2024-04-05 Takeshi Ikeda , Shinsuke Iwao , Satoshi Naito

We present an axiomatic frame (in Prt I of this book) in which many results of the K-theory for C*-algebras are proved. Then we construct an example for this axiomatic theory (in Part II), which generalizes the classical theory for…

Operator Algebras · Mathematics 2013-11-19 Corneliu Constantinescu

The $q$-Whittaker function $W_\lambda(\mathbf{x};q)$ associated to a partition $\lambda$ is a $q$-analogue of the Schur function $s_\lambda(\mathbf{x})$, and is defined as the $t=0$ specialization of the Macdonald polynomial…

Combinatorics · Mathematics 2025-02-11 Steven N. Karp , Hugh Thomas

We study a linear map on symmetric functions that ``divides'' a partition by a positive integer $k$, sending a Schur function indexed by a partition of $kn$ to a symmetric function indexed by partitions of $n$. We determine its Schur…

Combinatorics · Mathematics 2026-05-22 Per Alexandersson , Lilan Dai

We use dual equivalence to give a short, combinatorial proof that Stanley symmetric functions are Schur positive. We introduce weak dual equivalence, and use it to give a short, combinatorial proof that Schubert polynomials are key…

Combinatorics · Mathematics 2017-02-15 Sami Assaf

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

Recently Okada defined algebraically ninth variation skew Q-functions, in parallel to Macdonald's ninth variation skew Schur functions. Here we introduce a skew shifted tableaux definition of these ninth variation skew Q-functions, and…

Combinatorics · Mathematics 2020-02-28 Angèle M. Foley , Ronald C. King

We use Young's raising operators to give short and uniform proofs of several well known results about Schur polynomials and symmetric functions, starting from the Jacobi-Trudi identity.

Combinatorics · Mathematics 2013-09-10 Harry Tamvakis

A factorial analogue of the supersymmetric Schur functions is introduced. It is shown that factorial versions of the Jacobi--Trudi and Sergeev--Pragacz formulae hold. The results are applied to construct a linear basis in the center of the…

q-alg · Mathematics 2008-02-03 Alexander Molev

This work highlights the existence of partial symmetries in large families of iterated plethystic coefficients. The plethystic coefficients involved come from the expansion in the Schur basis of iterated plethysms of Schur functions indexed…

Combinatorics · Mathematics 2023-05-31 Álvaro Gutiérrez , Mercedes H. Rosas

Many $\mathbb{Q}$-linear relations exist between multiple zeta values, the most interesting of which are various weighted sum formulas. In this paper, we generalized these to Euler sums and some other variants of multiple zeta values by…

Number Theory · Mathematics 2024-10-04 Sasha Berger , Aarav Chandra , Jasper Jain , Daniel Xu , Ce Xu , J. Zhao

The Stanley-Stembridge conjecture associates a symmetric function to each natural unit interval order $\mathcal P$. In this paper, we define relations \`a la Knuth on the symmetric group for each $\mathcal P$ and conjecture that the…

Combinatorics · Mathematics 2020-05-15 Dongkwan Kim , Pavlo Pylyavskyy

We study the double Grothendieck polynomials of Kirillov--Naruse for the symplectic and odd orthogonal Grassmannians. These functions are explicitly written as sums of Pfaffian and are identified with the stable limits of the fundamental…

Combinatorics · Mathematics 2022-04-05 Thomas Hudson , Takeshi Ikeda , Tomoo Matsumura , Hiroshi Naruse