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Walks on Young's lattice of integer partitions encode many objects of algebraic and combinatorial interest. Chen et al. established connections between such walks and arc diagrams. We show that walks that start at $\varnothing$, end at a…

组合数学 · 数学 2018-05-28 Sophie Burrill , Julien Courtiel , Eric Fusy , Stephen Melczer , Marni Mishna

We derive combinatorial identities, involving the Bernoulli and Euler numbers, for the numbers of standard Young tableaux of certain skew shapes. This generalizes the classical formulas of D. Andre on the number of up-down permutations. The…

组合数学 · 数学 2007-09-05 Yuliy Baryshnikov , Dan Romik

The objective of this paper is to present two types of results on Minkowski sums of convex polytopes. The first is about a special class of polytopes we call perfectly centered and the combinatorial properties of the Minkowski sum with…

组合数学 · 数学 2009-02-14 Komei Fukuda , Christophe Weibel

Motivated by the study of polytopes formed as the convex hull of permutation matrices and alternating sign matrices, we define several new families of polytopes as convex hulls of sign matrices, which are certain {0,1,-1}-matrices in…

组合数学 · 数学 2019-05-15 Sara Solhjem , Jessica Striker

The number of standard Young tableaux of a skew shape $\lambda/\mu$ can be computed as a sum over excited diagrams inside $\lambda$. Excited diagrams are in bijection with certain lozenge tilings, with flagged semistandard tableaux and also…

组合数学 · 数学 2024-09-27 Greta Panova , Leonid Petrov

In this paper we establish an order statistics model of Young tableaux. Multiple integration over nested simplexes is applied to the enumeration of Young tableaux. A brief proof of Frobenius-Young's and Aitken's formulas is given. Partially…

组合数学 · 数学 2013-02-05 Ping Sun

We introduce new combinatorial objects called the shifted domino tableaux. We prove that these objects are in bijection with pairs of shifted Young tableaux. This bijection shows that shifted domino tableaux can be seen as elements of the…

组合数学 · 数学 2016-03-16 Zakaria Chemli

Unexpected product formulas for the number of standard Young tableaux of certain truncated shapes are found and proved. These include shifted staircase shapes minus a square in the NE corner, rectangular shapes minus a square in the NE…

组合数学 · 数学 2011-08-18 Ron M. Adin , Ronald C. King , Yuval Roichman

We present combinatorial bijections and identities between certain skew Young tableaux, Dyck paths, triangulations, and dissections.

组合数学 · 数学 2022-09-20 Su Ji Hong , George D. Nasr

The study of representations of affine Hecke algebras has led to a new notion of shapes and standard Young tableaux which works for the root system of any finite Coxeter group. This paper is completely independent of affine Hecke algebra…

表示论 · 数学 2007-05-23 Arun Ram

A tableau inversion is a pair of entries in row-standard tableau $T$ that lie in the same column of $T$ yet lack the appropriate relative ordering to make $T$ column-standard. An $i$-inverted Young tableau is a row-standard tableau along…

组合数学 · 数学 2015-06-24 Jonathan E. Beagley , Paul Drube

Young tableaux are classical combinatorial objects playing recurring and varied roles in representation theory, algebraic geometry and commutative algebra. This article is a short exposition on Young tableaux, written for the "WHAT IS...?"…

组合数学 · 数学 2007-05-23 Alexander Yong

A standard barely set-valued tableau of shape $\lambda$ is a filling of the Young diagram $\lambda$ with integers $1,2,\dots,|\lambda|+1$ such that the integers are increasing in each row and column, and every cell contains one integer…

组合数学 · 数学 2020-06-26 Jang Soo Kim , Michael J. Schlosser , Meesue Yoo

A complete classification is established of Minkowski valuations on lattice polytopes that intertwine the special linear group over the integers and are translation invariant. In the contravariant case, the only such valuations are…

度量几何 · 数学 2019-06-21 Karoly J. Boroczky , Monika Ludwig

In this paper we use a generating function approach to record and calculate entries of the Minkowski tensors of a polytope. We focus on ''surface tensors'', extending the methods used in arXiv:1807.10258 for moments of the uniform…

组合数学 · 数学 2020-07-28 Niklas Livchitz , Büşra Sert , Amy Wiebe

Let X,Y be finite sets and T a set of functions from X -> Y which we will call "tableaux". We define a simplicial complex whose facets, all of the same dimension, correspond to these tableaux. Such "tableau complexes" have many nice…

组合数学 · 数学 2010-02-17 Allen Knutson , Ezra Miller , Alexander Yong

We present a bijection between the set of standard Young tableaux of staircase minus rectangle shape, and the set of marked shifted standard Young tableaux of a certain shifted shape. Numerically, this result is due to DeWitt (2012).…

组合数学 · 数学 2021-05-18 Zachary Hamaker , Alejandro H. Morales , Igor Pak , Luis Serrano , Nathan Williams

An inverted semistandard Young tableau is a row-standard tableau along with a collection of inversion pairs that quantify how far the tableau is from being column semistandard. Such a tableau with precisely $k$ inversion pairs is said to be…

组合数学 · 数学 2016-06-16 Paul Drube

We determine the coefficient of proportionality between two multidimensional hypergeometric integrals. One of them is a solution of the dynamical difference equations associated with a Young diagram and the other is the vertex integral…

数学物理 · 物理学 2023-08-14 G. Felder , A. Smirnov , V. Tarasov , A. Varchenko

We introduce a graph structure on Euclidean polytopes. The vertices of this graph are the $d$-dimensional polytopes contained in $\mathbb{R}^d$ and its edges connect any two polytopes that can be obtained from one another by either…

度量几何 · 数学 2020-01-22 Julien David , Lionel Pournin , Rado Rakotonarivo
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