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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 obtain Hamel--Goulden-type ribbon decomposition determinantal formulas for flagged supersymmetric Schur functions. As an application, we derive corresponding new determinantal formulas dual refined canonical stable Grothendieck…

Combinatorics · Mathematics 2025-12-16 Alibek Adilzhan , Damir Yeliussizov

In the literature there are several determinant formulas for Schur functions: the Jacobi-Trudi formula, the dual Jacobi-Trudi formula, the Giambelli formula, the Lascoux-Pragacz formula, and the Hamel-Goulden formula, where the…

Combinatorics · Mathematics 2020-12-17 Jang Soo Kim , Meesue Yoo

We introduce a new family of Schur functions $s_{\lambda/\mu;a,b}(x/y)$ that depend on two sets of variables and two sequences of parameters. These free fermionic Schur functions have a hidden symmetry between the two sets of parameters…

Combinatorics · Mathematics 2023-12-04 Slava Naprienko

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

Just as the definition of factorial Schur functions as a ratio of determinants allows one to show that they satisfy a Jacobi-Trudi-type identity and have an explicit combinatorial realisation in terms of semistandard tableaux, so we offer…

Combinatorics · Mathematics 2017-10-03 Angèle M. Hamel , Ronald C. King

We introduce and study a family of inhomogeneous symmetric functions which we call the Frobenius-Schur functions. These functions are indexed by partitions and differ from the conventional Schur functions in lower terms only. Our interest…

Combinatorics · Mathematics 2007-05-23 Grigori Olshanski , Amitai Regev , Anatoly Vershik

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

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

We give an algebraic (non-analytic) proof of the deformed boson-fermion Fock space construction of Molev's double supersymmetric Schur functions, among other results, from our previous paper. In other words, we make no assumptions on the…

Combinatorics · Mathematics 2025-02-06 Daniel Bump , Andrew Hardt , Travis Scrimshaw

We prove a determinantal identity concerning Schur functions for 2-staircase diagrams lambda=(ln+l',ln,l(n-1)+l',l(n-1),...,l+l',l,l',0). When l=1 and l'=0 these functions are related to the partition function of the 6-vertex model at the…

Combinatorics · Mathematics 2011-01-19 Philippe Biane , Luigi Cantini , Andrea Sportiello

A recent paper of Bump, McNamara and Nakasuji introduced a factorial version of Tokuyama's identity, expressing the partition function of a six vertex model as the product of a t-deformed Vandermonde and a Schur function. Here we provide an…

Combinatorics · Mathematics 2015-01-16 Angèle M. Hamel , Ronald C. King

In this paper we classify all Schur functions and skew Schur functions that are multiplicity free when expanded in the basis of fundamental quasisymmetric functions, termed F-multiplicity free. Combinatorially, this is equivalent to…

Combinatorics · Mathematics 2014-01-30 Christine Bessenrodt , Stephanie van Willigenburg

We introduce certain generalisations of the characters of the classical Lie groups, extending the recently defined factorial characters of Foley and King. In this extension, the factorial powers are replaced with an arbitrary sequence of…

Combinatorics · Mathematics 2023-12-07 Mikhail Goltsblat

We give a bijective proof of an identity relating primed shifted gl(n)-standard tableaux to the product of a gl(n) character in the form of a Schur function and a product of sums of x and y terms. This result generalises a number of…

Combinatorics · Mathematics 2007-05-23 A. M. Hamel , R. C. King

We give new product formulas for the number of standard Young tableaux of certain skew shapes and for the principal evaluation of the certain Schubert polynomials. These are proved by utilizing symmetries for evaluations of factorial Schur…

Combinatorics · Mathematics 2020-06-03 Alejandro H. Morales , Igor Pak , Greta Panova

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

The identities which are in the literature often called ``bounded Littlewood identities" are determinantal formulas for the sum of Schur functions indexed by partitions with bounded height. They have interesting combinatorial consequences…

Combinatorics · Mathematics 2025-09-09 JiSun Huh , Jang Soo Kim , Christian Krattenthaler , Soichi Okada

We introduce the notion of the cutting strip of an outside decomposition of a skew shape, and show that cutting strips are in one-to-one correspondence with outside decompositions for a given skew shape. Outside decompositions are…

Combinatorics · Mathematics 2007-05-23 William Y. C. Chen , Guo-Guang Yan , Arthur L. B. Yang

Schur's transforms of a polynomial are used to count its roots in the unit disk. These are generalized them by introducing the sequence of symmetric sub-resultants of two polynomials. Although they do have a determinantal definition, we…

Symbolic Computation · Computer Science 2007-05-23 Cyril Brunie , Philippe Saux Picart
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