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We establish ring isomorphisms between quantum Grothendieck rings of certain remarkable monoidal categories of finite-dimensional representations of quantum affine algebras of types $A_{2n-1}^{(1)}$ and $B_n^{(1)}$. Our proof relies in part…

表示论 · 数学 2019-03-12 David Hernandez , Hironori Oya

In this paper, we study Grothendieck polynomials from a combinatorial viewpoint. We introduce the factorial Grothendieck polynomials, analogues of the factorial Schur functions and present some of their properties, and use them to produce a…

组合数学 · 数学 2010-12-14 Peter J. McNamara

In this article, we prove a tableau formula for the double Grothendieck polynomials associated to $321$-avoiding permutations. The proof is based on the compatibility of the formula with the $K$-theoretic divided difference operators.

组合数学 · 数学 2017-11-02 Tomoo Matsumura

We give combinatorial proofs of two types of duality for Grothendieck polynomials by constructing a unified combinatorial framework incorporating set-valued tableaux, musltiset-valued tableaux, reverse plane partitions and valued-set…

组合数学 · 数学 2024-12-31 Graham Hawkes

We give degree formulas for Grothendieck polynomials indexed by vexillary permutations and $1432$-avoiding permutations via tableau combinatorics. These formulas generalize a formula for degrees of symmetric Grothendieck polynomials which…

组合数学 · 数学 2022-12-05 Jenna Rajchgot , Colleen Robichaux , Anna Weigandt

We give an explicit formula for the degree of the Grothendieck polynomial of a Grassmannian permutation and a closely related formula for the Castelnuovo-Mumford regularity of the Schubert determinantal ideal of a Grassmannian permutation.…

组合数学 · 数学 2020-07-30 Jenna Rajchgot , Yi Ren , Colleen Robichaux , Avery St. Dizier , Anna Weigandt

We give a new combinatorial description for stable Grothendieck polynomials in terms of subdivisions of Gelfand-Zetlin polytopes. Moreover, these subdivisions also provide a description of Lascoux polynomials. This generalizes a similar…

组合数学 · 数学 2024-10-15 Ekaterina Presnova , Evgeny Smirnov

We consider the Grothendieck polynomials appearing in the K-theory of Grassmannians, which are analogs of Schur polynomials. This paper aims to establish a version of the Murnaghan-Nakayama rule for Grothendieck polynomials of the…

组合数学 · 数学 2024-05-14 Khanh Nguyen Duc , Dang Tuan Hiep , Tran Ha Son , Do Le Hai Thuy

We extend some classical results - such as Quillen's Theorem A, the Grothendieck construction, Thomason's Theorem and the characterisation of homotopically cofinal functors - from the homotopy theory of small categories to polynomial monads…

代数拓扑 · 数学 2020-01-16 Michael Batanin , Florian De Leger

Stable Grothendieck polynomials can be viewed as a K-theory analog of Schur polynomials. We extend stable Grothendieck polynomials to a two-parameter version, which we call canonical stable Grothendieck functions. These functions have the…

组合数学 · 数学 2016-09-13 Damir Yeliussizov

In this paper, we introduce a family of symmetric polynomials by specializing the factorial Schur polynomials. These polynomials represent the weighted Schubert classes of the cohomology of the weighted Grassmannian introduced by…

组合数学 · 数学 2015-02-02 Hiraku Abe , Tomoo Matsumura

In this paper we prove the Gromov--Milman conjecture (the Dvoretzky type theorem) for homogeneous polynomials on $\mathbb R^n$, and improve bounds on the number $n(d,k)$ in the analogous conjecture for odd degrees $d$ (this case is known as…

度量几何 · 数学 2011-07-06 V. L. Dol'nikov , R. N. Karasev

Grothendieck polynomials were introduced by Lascoux and Sch\"utzenberger, and they play an important role in K-theoretic Schubert calculus. In this paper, we give a new definition of double stable Grothendieck polynomials based on an…

代数拓扑 · 数学 2018-11-07 Richard Rimanyi , Andras Szenes

We use Bott-Samelson resolutions of Schubert varieties in Grassmannians along with equiariant localization techniques to show that the factorial Schur functions and the factorial Grothendieck polynomials represent Schubert classes in…

代数几何 · 数学 2021-10-14 David Oetjen

We investigate the longstanding problem of finding a combinatorial rule for the Schubert structure constants in the $K$-theory of flag varieties (in type $A$). The Grothendieck polynomials of A. Lascoux-M.-P. Sch\"{u}tzenberger (1982) serve…

组合数学 · 数学 2019-10-23 Oliver Pechenik , Dominic Searles

For each infinite series of the classical Lie groups of type B,C or D, we introduce a family of polynomials parametrized by the elements of the corresponding Weyl group of infinite rank. These polynomials represent the Schubert classes in…

组合数学 · 数学 2022-04-05 Takeshi Ikeda , Leonardo C. Mihalcea , Hiroshi Naruse

We determine all permutations in two large classes of polynomials over finite fields, where the construction of the polynomials in each class involves the denominators of a class of rational functions generalizing the classical Redei…

数论 · 数学 2023-05-11 Zhiguo Ding , Michael E. Zieve

In the case of Dynkin quivers we establish a formula for the Grothendieck class of a quiver cycle as the iterated residue of a certain rational function, for which we provide an explicit combinatorial construction. Moreover, we utilize a…

代数几何 · 数学 2014-12-23 Justin Allman

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…

组合数学 · 数学 2024-12-31 Graham Hawkes

Classical orthogonal polynomials in one variable can be characterized as the only orthogonal polynomials satisfying a Rodrigues formula. In this paper, using the second kind Kronecker power of a matrix, a Rodrigues formula is introduced for…

经典分析与常微分方程 · 数学 2007-05-23 A. Alvarez de Morales , L. Fernández , T. E. Pérez , M. A. Piñar