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The classical Pieri formula gives a combinatorial rule for decomposing the product of a Schur function and a complete homogeneous symmetric polynomial as a linear combination of Schur functions with integer coefficients. We give a Pieri…

Combinatorics · Mathematics 2018-09-05 Anna Stokke

The Pieri rule is a nonnegative, multiplicity-free formula for the Schur function expansion of the product of an arbitrary Schur function with a single row Schur function. Key polynomials are characters of Demazure modules for the general…

Combinatorics · Mathematics 2019-08-23 Sami Assaf , Danjoseph Quijada

Schur superpolynomials have been introduced recently as limiting cases of the Macdonald superpolynomials. It turns out that there are two natural super-extensions of the Schur polynomials: in the limit $q=t=0$ and $q=t\rightarrow\infty$,…

Mathematical Physics · Physics 2015-03-12 Olivier Blondeau-Fournier , Pierre Mathieu

In this paper we give Pieri rules for skew dual immaculate functions and their recently discovered row-strict counterparts. We establish our rules using a right-action analogue of the skew Littlewood-Richardson rule for Hopf algebras of…

Combinatorics · Mathematics 2025-09-09 Elizabeth Niese , Sheila Sundaram , Stephanie van Willigenburg , Shiyun Wang

We study a new perspective on a certain Pieri rules for classical groups. Furthermore, we extend a fundamental theorem of Kostant concerning tensor products for classical groups. We show that a certain form of the Pieri rule is equivalent…

Representation Theory · Mathematics 2025-12-23 Dibyendu Biswas

We prove the Pieri formulas for Schur multiple zeta functions, which are generalizations of the Pieri formulas proved by Nakasuji and Takeda for hook type Schur multiple zeta functions. Moreover, we also prove the Littlewood-Richardson rule…

Number Theory · Mathematics 2024-12-19 Shutaro Nakaoka

We systematically study wreath product Schur functions and give a combinatorial construction using colored partitions and tableaux. The Pieri rule and the Littlewood-Richardson rule are studied. We also discuss the connection with…

Combinatorics · Mathematics 2009-03-20 Frank Ingram , Naihuan Jing , Ernie Stitzinger

We give a combinatorial rule for calculating the coefficients in the expansion of a product of two factorial Schur functions. It is a special case of a more general rule which also gives the coefficients in the expansion of a skew factorial…

q-alg · Mathematics 2008-02-03 Alexander I. Molev , Bruce E. Sagan

We study the Pieri type formulas for the Schur multiple zeta functions along with those for the Schur polynomials. To formulate these formulas, we introduce a new insertion rule for adding boxes in the Young tableaux and obtain the results…

Number Theory · Mathematics 2022-08-26 Maki Nakasuji , Wataru Takeda

In a seminal paper Richard Stanley derived Pieri rules for the Jack symmetric function basis. These rules were extended by Macdonald to his now famous symmetric function basis. The original form of these rules had a forbidding complexity…

Combinatorics · Mathematics 2014-07-31 A. M. Garsia , J. Haglund , G. Xin , M. Zabrocki

$GQ$ functions are symmetric functions indexed by strict partitions that represent $K$-theoretic Schubert classes in the Lagrangian Grassmannian. Buch and Ravikumar proved a Pieri rule for expanding $GQ_{\lambda}\cdot GQ_p$ in terms of…

Combinatorics · Mathematics 2025-12-11 Joshua Arroyo

We present a single operation for constructing skew diagrams whose corresponding skew Schur functions are equal. This combinatorial operation naturally generalises and unifies all results of this type to date. Moreover, our operation…

Combinatorics · Mathematics 2012-02-01 Peter McNamara , Stephanie van Willigenburg

Petrie symmetric functions $G(k,n)$, also known as truncated homogeneous symmetric functions or modular complete symmetric functions, form a class of symmetric functions interpolating between the elementary symmetric functions $e_n$ and the…

Combinatorics · Mathematics 2026-05-29 Saintan Wu , Sen-Peng Eu , Kuo-Han Ku , Yu-Sheng Shih

We present a new geometric proof of Pieri's formula, exhibiting an explicit chain of rational equivalences from a suitable sum of distinct Schubert varieties to the intersection of a Schubert variety with a special Schubert variety. The…

alg-geom · Mathematics 2008-02-03 Frank Sottile

This paper proves a combinatorial rule expressing the product $s_\tau(s_{\lambda/\mu} \circ p_r)$ of a Schur function and the plethysm of a skew Schur function with a power sum symmetric function as an integral linear combination of Schur…

Combinatorics · Mathematics 2016-10-11 Mark Wildon

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

A $k$-ribbon tiling is a decomposition of a connected skew diagram into disjoint ribbons of size $k$. In this paper, we establish a connection between a subset of $k$-ribbon tilings and Petrie symmetric functions, thus providing a…

Combinatorics · Mathematics 2025-11-27 Emma Yu Jin , Naihuan Jing , Ning Liu

An explicit rule is given for the product of the degree two class with an arbitrary Schubert class in the torus-equivariant homology of the affine Grassmannian. In addition a Pieri rule (the Schubert expansion of the product of a special…

Combinatorics · Mathematics 2011-05-27 Thomas Lam , Mark Shimozono

We construct a lift of Schur's Q-functions to the peak algebra of the symmetric group, called the noncommutative Schur Q-functions, and extract from them a new natural basis with several nice properties such as the positive right-Pieri…

Combinatorics · Mathematics 2020-09-08 Naihuan Jing , Yunnan Li

The Pieri rule is an important theorem which explains how the operators e_k of multiplication by elementary symmetric functions act in the basis of Schur functions s_lambda. In this paper, for any rational number m/n, we study the…

Combinatorics · Mathematics 2015-04-27 Andrei Neguţ
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