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Related papers: Hook length and symplectic content in partitions

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Branching of symplectic groups is not multiplicity-free. We describe a new approach to resolving these multiplicities that is based on studying the associated branching algebra $B$. The algebra $B$ is a graded algebra whose components…

Representation Theory · Mathematics 2012-09-03 Oded Yacobi

We prove a conjecture of Okada giving an exact formula for a certain statistic for hook-lengths of partitions: \frac{1}{n!} \sum_{\lambda \vdash n} f_{\lambda}^2 \sum_{u \in \lambda} \prod_{i=1}^{r}(h_u^2 - i^2) = \frac{1}{2(r+1)^2}…

Combinatorics · Mathematics 2012-01-17 Greta Panova

Let $D$ denote a quaternion division algebra over a non-archimedean local field $F$ with characteristic zero. Let $Sp_n(D)$ be the unique non-split inner form of the symplectic group $Sp_{2n}(F)$. An irreducible admissible representation…

Representation Theory · Mathematics 2024-07-15 Hariom Sharma , Mahendra Kumar Verma

We consider the poset of weighted partitions $\Pi_n^w$, introduced by Dotsenko and Khoroshkin in their study of a certain pair of dual operads. The maximal intervals of $\Pi_n^w$ provide a generalization of the lattice $\Pi_n$ of…

Combinatorics · Mathematics 2017-11-21 Rafael S. González D'León , Michelle L. Wachs

Using only a symmetric p-core partition and p-quotient, we give an explicit formula for the set of diagonal hook lengths of the associated symmetric partition.

Combinatorics · Mathematics 2009-03-17 Rishi Nath

Let $D$ be a quaternion division algebra over a non-archimedean local field $K$ of characteristic zero, and let $Sp_n(D)$ be the unique non-split inner form of the symplectic group $Sp_{2n}(K)$. This paper classifies the irreducible…

Representation Theory · Mathematics 2024-05-27 Hariom Sharma , Mahendra Kumar Verma

We consider the equal sum partition problem, motivated by distance magic graph labeling: Given $n,k \in \N$ such that $k\, | \sum_{i=1}^ni$ and a partition $p_1+\cdots+p_k=n$, when is it possible to find a partition of the set…

Combinatorics · Mathematics 2026-05-08 Shlomo Hoory , Dani Kotlar

The monomial basis for polynomials in N variables is labeled by compositions. To each composition there is associated a hook-length product, which is a product of linear functions of a parameter. The zeroes of this product are related to…

Combinatorics · Mathematics 2007-05-23 Charles F. Dunkl

We explore some connections between vectors of integers and integer partitions seen as bi-infinite words. This methodology enables us on the one hand to obtain enumerations connecting products of hook lengths and vectors of integers. This…

Combinatorics · Mathematics 2026-05-18 David Wahiche

The paper is devoted to the derivation of the expansion formula for the powers of the Euler Product in terms of partition hook lengths, discovered by Nekrasov and Okounkov in their study of the Seiberg-Witten Theory. We provide a refinement…

Combinatorics · Mathematics 2008-05-12 Guo-Niu Han

We prove that for all natural numbers k,n,d with k <= d and every partition lambda of size kn with at most k parts there exists an irreducible GL(d, C)-representation of highest weight 2*lambda in the plethysm Sym^k(Sym^(2n) (C^d)). This…

Group Theory · Mathematics 2010-12-16 Peter Bürgisser , Matthias Christandl , Christian Ikenmeyer

In this paper, we count the total number of hooks of length two in all odd partitions of $n$ and all distinct partitions of $n$ with a bound on the largest part of the partitions. We generalize inequalities of Ballantine, Burson, Craig,…

Combinatorics · Mathematics 2025-04-14 Alexander Berkovich , Aritram Dhar

We prove a series of ``knapsack'' type equalities for irreducible character degrees of symmetric groups. That is, we find disjoint subsets of the partitions of $n$ so that the two corresponding character-degree sums are equal. Our main…

Combinatorics · Mathematics 2025-10-02 David J. Hemmer , Armin Straub , Karlee J. Westrem

Euler's identity equates the number of partitions of any non-negative integer n into odd parts and the number of partitions of n into distinct parts. Beck conjectured and Andrews proved the following companion to Euler's identity: the…

Combinatorics · Mathematics 2022-02-08 Cristina Ballantine , Hannah E. Burson , Amanda Folsom , Chi-Yun Hsu , Isabella Negrini , Boya Wen

Recently, the theory of hook length biases has emerged as a prominent research topic. Led by Ballantine, Burson, Craig, Folsom, and Wen [\textit{Res. Math. Sci.}, 2023], hook length biases are being explored for ordinary partitions, odd…

Combinatorics · Mathematics 2026-03-13 Nayandeep Deka Baruah , Hirakjyoti Das , Pankaj Jyoti Mahanta , Manjil P. Saikia

We extend the results of spin ladder models associated with the Lie algebras $su(2^n)$ to the case of the orthogonal and symplectic algebras $o(2^n),\ sp(2^n)$ where n is the number of legs for the system. Two classes of models are found…

Statistical Mechanics · Physics 2009-10-31 M. T. Batchelor , J. de Gier , J. Links , M. Maslen

We provide an explicit construction and a closed dimension formula in terms of hook lengths for the irreducible representations for the symmetric groups $\mathfrak{S}_p$ and the Sergeev superalgebras $\mathcal{Y}_p$ over an algebraically…

Representation Theory · Mathematics 2026-03-31 Minjia Chen , Jinkui Wan , Hongbo Zhao

Recently, Blecher and Knopfmacher applied the notion of fixed points to integer partitions. This has already been generalized and refined in various ways such as $h$-fixed points for an integer parameter $h$ by Hopkins and Sellers. Here, we…

Combinatorics · Mathematics 2024-12-25 Philip Cuthbertson , David J. Hemmer , Brian Hopkins , William J. Keith

We give a description of the irreducible constituents of the restriction to Sylow 2-subgroups of irreducible characters of symmetric groups labelled by hook partitions.

Representation Theory · Mathematics 2023-01-19 Eugenio Giannelli , Giada Volpato

Zeckendorf proved that every positive integer has a unique partition as a sum of non-consecutive Fibonacci numbers. We study the difference between the number of summands in the partition of two consecutive integers. In particular, let…

Number Theory · Mathematics 2020-10-30 Hung Viet Chu