Results 1 to 10 of about 1,248 (76)

Poly-falling factorial sequences and poly-rising factorial sequences

open access: yesOpen Mathematics, 2021
In this paper, we introduce generalizations of rising factorials and falling factorials, respectively, and study their relations with the well-known Stirling numbers, Lah numbers, and so on.
Kim Hye Kyung
doaj   +1 more source

Row bounds needed to justifiably express flagged Schur functions with Gessel-Viennot determinants [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2021
Let $\lambda$ be a partition with no more than $n$ parts. Let $\beta$ be a weakly increasing $n$-tuple with entries from $\{ 1, ... , n \}$. The flagged Schur function in the variables $x_1, ...
Robert A. Proctor, Matthew J. Willis
doaj   +1 more source

A note on polyexponential and unipoly Bernoulli polynomials of the second kind

open access: yesOpen Mathematics, 2021
In this paper, the authors study the poly-Bernoulli numbers of the second kind, which are defined by using polyexponential functions introduced by Kims. Also by using unipoly function, we study the unipoly Bernoulli numbers of the second kind, which are ...
Ma Minyoung, Lim Dongkyu
doaj   +1 more source

Representing the Stirling polynomials σn(x) in dependence of n and an application to polynomial zero identities

open access: yesSpecial Matrices, 2023
Denote by σn{\sigma }_{n} the n-th Stirling polynomial in the sense of the well-known book Concrete Mathematics by Graham, Knuth and Patashnik. We show that there exist developments xσn(x)=∑j=0n(2jj!)−1qn−j(j)xjx{\sigma }_{n}\left(x)={\sum }_{j=0}^{n ...
Kovačec Alexander   +1 more
doaj   +1 more source

Fully degenerate Bell polynomials associated with degenerate Poisson random variables

open access: yesOpen Mathematics, 2021
Many mathematicians have studied degenerate versions of quite a few special polynomials and numbers since Carlitz’s work (Utilitas Math. 15 (1979), 51–88). Recently, Kim et al.
Kim Hye Kyung
doaj   +1 more source

Negative moments of orthogonal polynomials

open access: yesForum of Mathematics, Sigma, 2023
If a sequence indexed by nonnegative integers satisfies a linear recurrence without constant terms, one can extend the indices of the sequence to negative integers using the recurrence.
Jihyeug Jang   +4 more
doaj   +1 more source

The dual of number sequences, Riordan polynomials, and Sheffer polynomials

open access: yesSpecial Matrices, 2021
In this paper we introduce different families of numerical and polynomial sequences by using Riordan pseudo involutions and Sheffer polynomial sequences.
He Tian-Xiao, Ramírez José L.
doaj   +1 more source

The eigenvalues of $q$-Kneser graphs [PDF]

open access: yes, 2011
In this note, we prove some combinatorial identities and obtain a simple form of the eigenvalues of $q$-Kneser ...
Lv, Benjian, Wang, Kaishun
core   +2 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

Bijective Proofs of Gould's and Rothe's Identities [PDF]

open access: yes, 2008
We first give a bijective proof of Gould's identity in the model of binary words. Then we deduce Rothe's identity from Gould's identity again by a bijection, which also leads to a double-sum extension of the $q$-Chu-Vandermonde formula.Comment: 4 ...
Andrews   +12 more
core   +6 more sources

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