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Related papers: Generalized hook lengths in symbols and partitions

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In this article, we study hook lengths of ordinary partitions and $t$-regular partitions. We establish hook length biases for the ordinary partitions and motivated by them we find a few interesting hook length biases in $2$-regular…

Combinatorics · Mathematics 2024-05-30 Gurinder Singh , Rupam Barman

In 2010, G.-N. Han obtained the generating function for the number of size $t$ hooks among integer partitions. Here we obtain these generating functions for self-conjugate partitions, which are particularly elegant for even $t$. If…

Combinatorics · Mathematics 2024-02-09 Tewodros Amdeberhan , George E. Andrews , Ken Ono , Ajit Singh

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

Following the work of B. Kuelshammer, J. B. Olsson and G. R. Robinson on generalized blocks of the symmetric groups, we give a definition for the \ell-defect of characters of the symmetric group S_n, where \ell > 1 is an arbitrary integer.…

Representation Theory · Mathematics 2013-01-09 Jean-Baptiste Gramain

We introduce the difference operator for functions defined on strict partitions and prove a polynomiality property for a summation involving the hook length and content statistics. As an application, several new hook-content formulas for…

Combinatorics · Mathematics 2016-12-14 Guo-Niu Han , Huan Xiong

The concept of $t$-difference operator for functions of partitions is introduced to prove a generalization of Stanley's theorem on polynomiality of Plancherel averages of symmetric functions related to contents and hook lengths. Our…

Combinatorics · Mathematics 2017-03-21 Paul-Olivier Dehaye , Guo-Niu Han , Huan Xiong

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

For an arbitrary infinite field k of characteristic p > 0, we describe the structure of a block of the algebraic monoid M_n(k) (all n x n matrices over k), or, equivalently, a block of the Schur algebra S(n,p), whose simple modules are…

Representation Theory · Mathematics 2008-03-11 Stephen Doty , Stuart Martin

Let $(R, \frak m)$ be a Noetherian local ring and $M$ a finitely generated $R$-module of dimension $d$. Let $\underline{x} = x_1, ..., x_d$ be a system of parameters of $M$ and $\underline{n} = (n_1, ..., n_d)$ a $d$-tuple of positive…

Commutative Algebra · Mathematics 2014-05-29 Marcel Morales , Pham Hung Quy

The distinguishing number of a graph was introduced by Albertson and Collins as a measure of the amount of symmetry contained in the graph. Tymoczko extended this definition to faithful group actions on sets; taking the set to be the vertex…

Combinatorics · Mathematics 2019-04-09 Caleb Ji

In a recent paper, Bringmann, Craig, Ono, and the author showed that the number of $t$-hooks ($t\geq2$) among all partitions of $n$ is not always asymptotically equidistributed on congruence classes $a \pmod{b}$. In this short note, we…

Combinatorics · Mathematics 2023-12-15 Joshua Males

In 2015, the author proved combinatorially character formulas expressing sums of the (formal) dimensions of irreducible representations of symplectic groups, refining some works of Nekrasov and Okounkov, Han, King, and Westbury. In this…

Combinatorics · Mathematics 2016-12-13 Mathias Pétréolle

We present a new family of hook-length formulas for the number of standard increasing tableaux which arise in the study of factorial Grothendieck polynomials. In the case of straight shapes our formulas generalize the classical hook-length…

Combinatorics · Mathematics 2021-08-31 Alejandro H. Morales , Igor Pak , Greta Panova

We consider a generalization of Eulerian numbers which count the number of placements of $cn$ "rooks" on an $n\times n$ board where there are exactly $c$ rooks in each row and each column, and exactly $k$ rooks below the main diagonal. The…

Combinatorics · Mathematics 2017-04-05 Esther Banaian , Steve Butler , Christopher Cox , Jeffrey Davis , Jacob Landgraf , Scarlitte Ponce

We give an explicit expression of the normalized characters of the symmetric group in terms of the contents of the partition labelling the representation.

Combinatorics · Mathematics 2008-02-29 Michel Lassalle

We give relations between the joint distributions of multiple hook lengths and of frequencies and part sizes in partitions, extending prior work in this area. These results are discovered by investigating truncations of the…

Combinatorics · Mathematics 2019-01-01 Emily E. Anible , William J. Keith

We bound the number of standard tableaux of skew shapes via thick hook decompositions in the Naruse hook length formula. Combining this with elementary counting arguments in the Murnaghan--Nakayama rule, we establish a uniform bound on…

Combinatorics · Mathematics 2025-08-12 Lucas Teyssier

Chalykh, Veselov and Feigin introduced the notions of quasiinvariants for Coxeter groups, which is a generalization of invariants. In [2], Bandlow and Musiker showed that for the symmetric group $S_n$ of order $n$, the space of…

Combinatorics · Mathematics 2008-07-14 Tadayoshi Tsuchida

There are $k$ kinds of length $k$ hooks with different arm length. Actually, this $k$ kinds appear uniformly in Young diagrams of size $n$. The property ``appear uniformly'' is called super symmetric. We give a combinatorial proof of the…

Combinatorics · Mathematics 2019-04-09 Masanori Ando

A cascade of dihedral symmetries is hidden in Young's lattice of integer partitions. In fact, for each integer N>2 the Hasse graph of the subposet consisting of the partitions with maximal hook length strictly less than N has the dihedral…

Combinatorics · Mathematics 2012-12-19 Ruedi Suter