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We present new Pieri type formulas for Jack polynomials. As an application, we give a new derivation of higher order difference equations for interpolation Jack polynomials originally found by Knop and Sahi. We also propose Pieri formulas…

Classical Analysis and ODEs · Mathematics 2020-11-24 Genki Shibukawa

We introduce partially defined Schur multipliers and obtain necessary and sufficient conditions for the existence of extensions to fully defined positive Schur multipliers, in terms of operator systems canonically associated with their…

Operator Algebras · Mathematics 2018-08-29 Rupert H. Levene , Ying-Fen Lin , Ivan G. Todorov

A method to construct irreducible unitary representations of a hyperspecial compact subgroup of a reductive group over p-adic field with odd p is presented. Our method is based upon Cliffods theory and Weil representations over finite…

Group Theory · Mathematics 2018-05-17 Koichi Takase

In a recent paper, the authors gave combinatorial formulas for the Laurent expansions of super $\lambda$-lengths in a marked disk, generalizing Schiffler's $T$-path formula. In the present paper, we give an alternate combinatorial…

Combinatorics · Mathematics 2021-11-18 Gregg Musiker , Nicholas Ovenhouse , Sylvester W. Zhang

We examine and present new combinatorics for the Schur polynomials from the viewpoint of quantum integrability. We introduce and analyze an integrable six-vertex model which can be viewed as a certain degeneration model from a t-deformed…

Mathematical Physics · Physics 2015-07-27 Kohei Motegi , Kazumitsu Sakai

The goal of the paper is two-fold. At first, we attempt to give a survey of some recent applications of symmetric polynomials and divided differences to intersection theory. We discuss: polynomials universally supported on degeneracy loci;…

alg-geom · Mathematics 2008-02-03 Piotr Pragacz

In the prequel to this paper, we showed how results of Mason involving a new combinatorial formula for polynomials that are now known as Demazure atoms (characters of quotients of Demazure modules, called standard bases by Lascoux and…

Combinatorics · Mathematics 2015-09-11 James Haglund , Kurt W. Luoto , Sarah Mason , Stephanie van Willigenburg

We show the equivalence of the Pieri formula for flag manifolds and certain identities among the structure constants, giving new proofs of both the Pieri formula and of these identities. A key step is the association of a symmetric function…

alg-geom · Mathematics 2016-11-08 Nantel Bergeron , Frank Sottile

We give a proof of the generalized Cauchy identity for double Grothendieck polynomials, a combinatorial interpretation of the stable double Grothendieck polynomials in terms of triples of tableaux, and an interpolation between the stable…

Combinatorics · Mathematics 2024-12-31 Graham Hawkes

We investigate the deformed Schur index in four dimensional N=4 super Yang-Mills theories with $SO$ and $Sp$ gauge groups, generalizing Hatsuda's recent calculations. We express the deformed Schur index as integrals of Koornwinder…

High Energy Physics - Theory · Physics 2026-01-06 Gao-fu Ren , Min-xin Huang

We prove that every supersymmetric Schur polynomial has a saturated Newton polytope (SNP). Our approach begins with a tableau-theoretic description of the support, which we encode as a polyhedron with a totally unimodular constraint matrix.…

Combinatorics · Mathematics 2025-08-21 Dang Tuan Hiep , Khai-Hoan Nguyen-Dang

Composing two representations of the general linear groups gives rise to Littlewood's (outer) plethysm. On the level of characters, this poses the question of finding the Schur expansion of the plethysm of two Schur functions. A…

Combinatorics · Mathematics 2025-03-20 Laura Colmenarejo , Rosa Orellana , Franco Saliola , Anne Schilling , Mike Zabrocki

Certain generalization of Euler numbers was defined in 1935 by Lehmer using cubic roots of unity, as a natural generalization of Bernoulli and Euler numbers. In this paper, we define a new polynomial related to the higher-order generalized…

Combinatorics · Mathematics 2025-07-24 Wei-Wei Qi

Let $\Lambda$ be the space of symmetric functions and $V_k$ be the subspace spanned by the modified Schur functions $\{S_\lambda[X/(1-t)]\}_{\lambda_1\leq k}$. We introduce a new family of symmetric polynomials,…

Quantum Algebra · Mathematics 2007-05-23 L. Lapointe , A. Lascoux , J. Morse

In this paper, by using some families of special numbers and polynomials with their generating functions, we give various properties of these numbers and polynomials. These numbers are related to the well-known numbers and polynomials,…

Combinatorics · Mathematics 2023-02-24 Yilmaz Simsek

Traditional formulations of geometric problems from the Schubert calculus, either in Plucker coordinates or in local coordinates provided by Schubert cells, yield systems of polynomials that are typically far from complete intersections and…

Algebraic Geometry · Mathematics 2012-12-14 Jonathan D. Hauenstein , Nickolas Hein , Frank Sottile

We give an elementary proof of the Pieri-type formula in the cohomology of a Grassmannian of maximal isotropic subspaces of an odd orthogonal or symplectic vector space. This proof proceeds by explicitly computing a triple intersection of…

Algebraic Geometry · Mathematics 2016-09-07 Frank Sottile

Macdonald's ninth variation of Schur functions is a broad generalization of the classical Schur function and its variants, defined via the Jacobi-Trudi determinant formula. In this paper, we establish various algebraic relations for…

Combinatorics · Mathematics 2025-08-06 Wataru Takeda , Yoshinori Yamasaki

Let P_nk(x) denote the sum of the lowest k+1 terms in the expansion of (1+x)^n. We investigate the irreducibility of P_nk(x) and more general univariate polynomials related to it. Polynomials P_nk(x) naturally arise in Schubert calculus,…

Number Theory · Mathematics 2007-06-13 Michael Filaseta , Angel Kumchev , Dmitrii V. Pasechnik

We study several quiver Chern-Simons-matter theories on the three-sphere, combining the matrix model formulation with a systematic use of Mordell's integral, computing partition functions and checking dualities. We also consider Wilson…

High Energy Physics - Theory · Physics 2020-10-12 Leonardo Santilli , Miguel Tierz
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