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相关论文: The number of ribbon Schur functions

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We consider the problem of determining when the difference of two ribbon Schur functions is a single Schur function. We fully classify the five infinite families of pairs of ribbon Schur functions whose difference is a single Schur function…

组合数学 · 数学 2020-08-11 Foster Tom

We determine the precise conditions under which any skew Schur function is equal to a Schur function over both infinitely and finitely many variables.

组合数学 · 数学 2007-06-22 Stephanie van Willigenburg

Subsequently to the author's preceding paper, we give full proofs of some explicit formulas about factorizations of $K$-$k$-Schur functions associated with any multiple $k$-rectangles.

组合数学 · 数学 2017-04-28 Motoki Takigiku

We define an equivalence relation on integer compositions and show that two ribbon Schur functions are identical if and only if their defining compositions are equivalent in this sense. This equivalence is completely determined by means of…

组合数学 · 数学 2007-06-20 Louis J. Billera , Hugh Thomas , Stephanie van Willigenburg

We investigate a generalization of the classical notion of a Schur functor associated to a ribbon diagram. These functors are defined with respect to an arbitrary algebra, and in the case that the underlying algebra is the…

交换代数 · 数学 2025-03-26 Keller VandeBogert

In this paper, we study sum formulas for Schur multiple zeta values and give a generalization of the sum formulas for multiple zeta(-star) values. We show that for ribbons of certain types, the sum over all admissible Young tableaux of this…

We find a simple criterion for the equality $Q_\lambda=Q_{\mu/\nu}$ where $Q_\lambda$ and $Q_{\mu/\nu}$ are Schur's Q-functions on infinitely many variables.

组合数学 · 数学 2007-05-23 Hadi Salmasian

We study the Hurwitz-type analogue of Schur multiple zeta-functions involving shifting parameters. We extend various formulas, known for ordinary Schur multiple zeta-functions, to the case of Hurwitz type. We also mention unpublished…

数论 · 数学 2025-03-27 Kohji Matsumoto , Maki Nakasuji

Some new relations on skew Schur function differences are established both combinatorially using Sch\"utzenberger's jeu de taquin, and algebraically using Jacobi-Trudi determinants. These relations lead to the conclusion that certain…

组合数学 · 数学 2014-01-30 Ronald C. King , Trevor A. Welsh , Stephanie J. van Willigenburg

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 · 数学 2008-02-03 Alexander I. Molev , Bruce E. Sagan

We classify the $Q$-multiplicity-free skew Schur $Q$-functions. Towards this result, we also provide new relations between the shifted Littlewood-Richardson coefficients.

组合数学 · 数学 2016-09-28 Christopher Schure

In this paper we obtain an explicit formula for the higher Schur-multiplicator of an arbitrary finite abelian group with respect to the variety of nilpotent groups of class at most $c\geq 1$ .

The Schur multiple zeta function was defined as a multivariable function by Nakasuji-Phuksuwan-Yamasaki. Inspired by the product formula of Schur functions, the products of Schur multiple zeta functions have been studied. While the product…

组合数学 · 数学 2026-02-13 Hikari Hanaki

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…

数论 · 数学 2022-08-26 Maki Nakasuji , Wataru Takeda

Inspired by the spin-inversion statistics of Schilling et al. and Haglund et al., we relate the symmetry of ribbon functions to a result of van Leeuwen, and also describe the multiplication of a domino function by a Schur function.

组合数学 · 数学 2007-05-23 Thomas Lam

We introduce Schur multiple zeta functions which interpolate both the multiple zeta and multiple zeta-star functions of the Euler-Zagier type combinatorially. We first study their basic properties including a region of absolute convergence…

数论 · 数学 2018-04-26 Maki Nakasuji , Ouamporn Phuksuwan , Yoshinori Yamasaki

We determine upper and lower bounds for the minimal number of balls of a given radius needed to cover the space of schlicht functions.

复变函数 · 数学 2020-11-06 Philippe Drouin , Thomas Ransford

The product of any finite number of factorial Schur functions can be expanded as a $Z[y]$-linear combination of Schur functions. We give a rule for computing the coefficients in such an expansion which generalizes a specialization of the…

组合数学 · 数学 2008-03-04 V. Kreiman

In this article, we will prove the Giambelli formula for Schur multiple zeta-functions of extended shape which we call laced type, using the combinatorial method of proving the Giambelli formula for Schur function by Egecioglu and Remmel.…

数论 · 数学 2025-09-19 Kohji Matsumoto , Maki Nakasuji

We develop the theory of Schur covers of finite skew braces. We prove the existence of at least one Schur cover. We also compute several examples. We prove that different Schur covers are isoclinic. Finally, we prove that Schur covers have…

群论 · 数学 2024-02-01 T. Letourmy , L. Vendramin
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