Results 1 to 10 of about 10,524 (182)

Some structures of the catalan numbers I [PDF]

open access: yesریاضی و جامعه
The Catalan numbers are ubiquitous in counting problems which is one of the primary reasons for its popularity. From various sources like books and Wikipedia we see that in combinatorial mathematics.
Daniel Yaqubi, Madjid Mirzavaziri
doaj   +1 more source

Compositions inside a rectangle and unimodality [PDF]

open access: yes, 2007
Let c^{k,l}(n) be the number of compositions (ordered partitions) of the integer n whose Ferrers diagram fits inside a k-by-l rectangle. The purpose of this note is to give a simple, algebraic proof of a conjecture of Vatter that the sequence c^{k,l}(0),
Sagan, Bruce E.
core   +4 more sources

Factorization theorems for classical group characters, with applications to alternating sign matrices and plane partitions [PDF]

open access: yes, 2019
We show that, for a certain class of partitions and an even number of variables of which half are reciprocals of the other half, Schur polynomials can be factorized into products of odd and even orthogonal characters.
Ayyer, Arvind, Behrend, Roger E.
core   +3 more sources

Transition between characters of classical groups, decomposition of Gelfand-Tsetlin patterns and last passage percolation [PDF]

open access: yes, 2020
We study the combinatorial structure of the irreducible characters of the classical groups ${\rm GL}_{n}(\mathbb{C})$, ${\rm SO}_{2n+1}(\mathbb{C})$, ${\rm Sp}_{2n}(\mathbb{C})$, ${\rm SO}_{2n}(\mathbb{C})$ and the "non-classical" odd symplectic group ${\
Bisi, Elia, Zygouras, Nikos
core   +3 more sources

A Probabilistic Proof of the Rogers Ramanujan Identities [PDF]

open access: yes, 2000
The asymptotic probability theory of conjugacy classes of the finite general linear and unitary groups leads to a probability measure on the set of all partitions of natural numbers.
Fulman, Jason
core   +4 more sources

Integer partitions and exclusion statistics: Limit shapes and the largest part of Young diagrams [PDF]

open access: yes, 2007
We compute the limit shapes of the Young diagrams of the minimal difference $p$ partitions and provide a simple physical interpretation for the limit shapes.
Comtet, Alain   +3 more
core   +1 more source

Refined Topological Vertex, Cylindric Partitions and the U(1) Adjoint Theory [PDF]

open access: yes, 2009
We study the partition function of the compactified 5D U(1) gauge theory (in the Omega-background) with a single adjoint hypermultiplet, calculated using the refined topological vertex.
Aganagic   +24 more
core   +2 more sources

Covering matroid [PDF]

open access: yes, 2012
In this paper, we propose a new type of matroids, namely covering matroids, and investigate the connections with the second type of covering-based rough sets and some existing special matroids.
Liu, Yanfang, Zhu, William
core  

Antipode formulas for some combinatorial Hopf algebras

open access: yes, 2016
Motivated by work of Buch on set-valued tableaux in relation to the K-theory of the Grassmannian, Lam and Pylyavskyy studied six combinatorial Hopf algebras that can be thought of as K-theoretic analogues of the Hopf algebras of symmetric functions ...
Patrias, Rebecca
core   +1 more source

Kronecker Coefficients For Some Near-Rectangular Partitions [PDF]

open access: yes, 2014
We give formulae for computing Kronecker coefficients occurring in the expansion of $s_{\mu}*s_{\nu}$, where both $\mu$ and $\nu$ are nearly rectangular, and have smallest parts equal to either 1 or 2.
Tewari, Vasu V.
core  

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