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We introduce a ring of noncommutative shifted symmetric functions based on an integer-indexed sequence of shift parameters. Using generating series and quasideterminants, this multiparameter approach produces deformations of the ring of…

Rings and Algebras · Mathematics 2023-05-04 Robert Laugwitz , Vladimir Retakh

We present the basic elements of a generalization of symmetric function theory involving functions of commuting and anticommuting (Grassmannian) variables. These new functions, called symmetric functions in superspace, are invariant under…

Combinatorics · Mathematics 2012-08-13 Patrick Desrosiers , Luc Lapointe , Pierre Mathieu

This paper presents a noncommutative theory of symmetric functions, based on the notion of quasi-determinant. We begin with a formal theory, corresponding to the case of symmetric functions in an infinite number of independent variables.…

High Energy Physics - Theory · Physics 2008-02-03 Israel Gelfand , D. Krob , Alain Lascoux , B. Leclerc , V. S. Retakh , J. -Y. Thibon

This paper is concerned with two generalizations of the Hopf algebra of symmetric functions that have more or less recently appeared. The Hopf algebra of noncommutative symmetric functions and its dual, the Hopf algebra of quasisymmetric…

Quantum Algebra · Mathematics 2007-05-23 Michiel Hazewinkel

In 2004, Rosas and Sagan developed the theory of symmetric functions in noncommuting variables, achieving results analogous to classical symmetric functions. On the other hand, in 2004, Desrosiers, Lapointe and Mathieu introduced the theory…

Combinatorics · Mathematics 2024-11-25 Diego Arcis , Camilo González , Sebastián Márquez

We construct a generalization of the theory of symmetric functions involving functions of commuting and anticommuting (Grassmannian) variables. These new functions, called symmetric functions in superspace, are invariant under the diagonal…

Combinatorics · Mathematics 2007-05-23 P. Desrosiers , L. Lapointe , P. Mathieu

The theory of symmetric functions has been extended to the case where each variable is paired with an anticommuting one. The resulting expressions, dubbed superpolynomials, provide the natural N=1 supersymmetric version of the classical…

Mathematical Physics · Physics 2017-05-02 L. Alarie-Vézina , L. Lapointe , P. Mathieu

We introduce new bases for the Hopf algebra of quasisymmetric functions that refine the symmetric powersum basis. These bases are expanded in terms of quasisymmetric monomial functions by using fillings of matrices. We define the analog of…

Combinatorics · Mathematics 2021-12-28 Anthony Lazzeroni

Quasisymmetric functions in superspace were introduced as a natural extension of classical quasisymmetric functions involving both commuting and anticommuting variables. In this paper, we first provide a characterization of the algebra of…

Combinatorics · Mathematics 2026-04-09 Diego Arcis , Camilo González , Sebastián Márquez

FPSAC 2013 Extended Abstract. We introduce a new basis of the non-commutative symmetric functions whose elements have Schur functions as their commutative images. Dually, we build a basis of the quasi-symmetric functions which expand…

Combinatorics · Mathematics 2013-03-21 Chris Berg , Nantel Bergeron , Franco Saliola , Luis Serrano , Mike Zabrocki

Like its precursor this paper is concerned with the Hopf algebra of noncommutative symmetric functions and its graded dual, the Hopf algebra of quasisymmetric functions. It complements and extends the previous paper but is also…

Quantum Algebra · Mathematics 2007-05-23 Michiel Hazewinkel

In the 1995 paper entitled "Noncommutative symmetric functions," Gelfand, et. al. defined two noncommutative symmetric function analogues for the power sum basis of the symmetric functions, along with analogues for the elementary and the…

Combinatorics · Mathematics 2017-11-01 Cristina Ballantine , Zajj Daugherty , Angela Hicks , Sarah Mason , Elizabeth Niese

We introduce and study a generalization $s_{(\mu|\lambda)}$ of the Schur functions called the almost symmetric Schur functions. These functions simultaneously generalize the finite variable key polynomials and the infinite variable Schur…

Combinatorics · Mathematics 2024-05-03 Milo Bechtloff Weising

We introduce the multiple zeta functions with structures similar to those of symmetric functions such as Schur $P$-, Schur $Q$-, symplectic and orthogonal functions in the representation theory. We first consider their basic properties such…

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

This article is devoted to the study of several algebras which are related to symmetric functions, and which admit linear bases labelled by various combinatorial objects: permutations (free quasi-symmetric functions), standard Young…

Combinatorics · Mathematics 2013-02-12 G. Duchamp , F. Hivert , J. -Y. Thibon

The fundamental quasisymmetric functions in superspace are a generalization of the fundamental quasisymmetric functions involving anticommuting variables. We obtain the action of the product, coproduct, and antipode on the fundamental…

Combinatorics · Mathematics 2024-11-21 Susanna Fishel , Jessica Gatica , Luc Lapointe , Maria Elena Pinto

We introduce new families of cylindric symmetric functions as subcoalgebras in the ring of symmetric functions $\Lambda$ (viewed as a Hopf algebra) which have non-negative structure constants. Combinatorially these cylindric symmetric…

Combinatorics · Mathematics 2019-07-05 Christian Korff , David Palazzo

The richly developed theory of complex manifolds plays important roles in our understanding of holomorphic functions in several complex variables. It is natural to consider manifolds that will play similar roles in the theory of holomorphic…

Complex Variables · Mathematics 2024-04-15 Jim Agler , John E. McCarthy , N. J. Young

We define two-parameter families of noncommutative symmetric functions and quasi-symmetric functions, which appear to be the proper analogues of the Macdonald symmetric functions in these settings.

Combinatorics · Mathematics 2007-05-23 F. Hivert , A. Lascoux , J. -Y. Thibon

The noncommutative symmetric functions $\textbf{NSym}$ were first defined abstractly by Gelfand et al. in 1995 as the free associative algebra generated by noncommuting indeterminants $\{\boldsymbol{e}_n\}_{n\in \mathbb{N}}$ that were taken…

Combinatorics · Mathematics 2025-01-16 Angela Hicks , Robert McCloskey
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