Results 21 to 30 of about 9,522 (300)

On combinatorial generalization(s) of Borel transform: Averaging method in combinatorics of symmetric polynomials

open access: yesPhysics Letters B, 2023
We elaborate on the recent suggestion to consider averaging of Cauchy identities for the Schur functions over power sum variables. This procedure has apparent parallels with the Borel transform, only it changes the number of combinatorial factors like dR
A. Mironov, A. Morozov
doaj   +1 more source

A Note on the Difference of Powers and Falling Powers

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2021
Combinatorial sums and binomial identities have appeared in many branches of mathematics, physics, and engineering. They can be established by many techniques, from generating functions to special series.
Taoufik Sabar
doaj   +1 more source

Factorizations related to some numerical triangles

open access: yesSpecial Matrices, 2017
An asymmetric combinatorial matrix with two free parameters is factored in 4 different ways. The results are obtained by a combination of guessing and applying combinatorial identities.
Prodinger Helmut
doaj   +1 more source

On a Combinatorial Identity

open access: yes, 1999
Recently the second named author discovered a combinatorial identity in the context of vertex representations of quantum Kac-Moody algebras. We give a direct and elementary proof of this identity. Our method is to show a related identity of distributions.
Ding, Jintai, Jing, Naihuan
openaire   +3 more sources

A Combinatorial Proof for Cayley's Identity [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2014
In a recent paper, Caracciolo, Sokal and Sportiello presented, inter alia, an algebraic/combinatorial proof for Cayley's identity. The purpose of the present paper is to give a "purely combinatorial" proof for this identity; i.e., a proof involving only combinatorial arguments.
openaire   +4 more sources

On Combinatorial Identities of Engbers and Stocker

open access: yesIntegers, 2017
See the abstract in the attached pdf.
Horst Alzer, Helmut Prodinger
openaire   +3 more sources

Down-step statistics in generalized Dyck paths [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
The number of down-steps between pairs of up-steps in $k_t$-Dyck paths, a generalization of Dyck paths consisting of steps $\{(1, k), (1, -1)\}$ such that the path stays (weakly) above the line $y=-t$, is studied.
Andrei Asinowski   +2 more
doaj   +1 more source

Combinatorial identities for Appell polynomials [PDF]

open access: yes, 2018
Using the techniques of the modern umbral calculus, we derive several combinatorial identities involving s-Appell polynomials. In particular, we obtain identities for classical polynomials, such as the Hermite, Laguerre, Bernoulli, Euler, Norlund ...
Emanuele Munarini, E. Munarini
core   +1 more source

On Some Combinatorial Interpretations of Slater's Identities [PDF]

open access: yes, 1990
Four combinatorial interpretations of identities due to L. J. Slater that have recently been published are slightly incorrect. I show how they may be corrected and also provide a new interpretation of one of these identities.
R. P. Lewis
core   +1 more source

Shuffle Product Formulas and Combinatorial Identities

open access: yesMathematics
We study shuffle product structures on words in three letters, extending the classical framework of multiple zeta values. Using an evaluation map that relates admissible words to iterated integrals, we translate shuffle identities into combinatorial ...
Kwang-Wu Chen
doaj   +1 more source

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