Results 51 to 60 of about 1,005 (113)

Compositions of positive integers with 2s and 3s

open access: yesDemonstratio Mathematica, 2023
In this article, we consider compositions of positive integers with 2s and 3s. We see that these compositions lead us to results that involve Padovan numbers, and we give some tiling models of these compositions.
Dişkaya Orhan, Menken Hamza
doaj   +1 more source

Galois Identities of the three term recurrence [PDF]

open access: yes, 2013
We study the existence of the identity L_n^2 -5F_n^2 = 4(-1 ...
Cheng Lien, Lang, Mong Lung Lang
core  

Number Sequences in an Integral Form with a Generalized Convolution Property and Somos-4 Hankel Determinants [PDF]

open access: yes, 2012
MSC 2010: 11B83, 05A19, 33C45This paper is dealing with the Hankel determinants of the special number sequences given in an integral form. We show that these sequences satisfy a generalized convolution property and the Hankel determinants have the ...
Barry, Paul   +2 more
core  

Arithmetic and Geometric Progressions in Productsets over Finite Fields

open access: yes, 2007
Given two sets $\cA, \cB \subseteq \F_q$ of elements of the finite field $\F_q$ of $q$ elements, we show that the productset $$ \cA\cB = \{ab | a \in \cA, b \in\cB\} $$ contains an arithmetic progression of length $k \ge 3$ provided that ...
Shparlinski, Igor E.
core   +1 more source

Zeros distribution and interlacing property for certain polynomial sequences

open access: yesOpen Mathematics
In this article, we first prove that the Hankel determinant of order three of the polynomial sequence {Pn(x)=∑k≥0P(n,k)xk}n≥0{\left\{{P}_{n}\left(x)={\sum }_{k\ge 0}P\left(n,k){x}^{k}\right\}}_{n\ge 0} is weakly (Hurwitz) stable, where P(n,k)P\left(n,k ...
Guo Wan-Ming
doaj   +1 more source

Skyscraper Numbers [PDF]

open access: yes, 2013
We introduce numbers depending on three parameters which we call skyscraper numbers. We discuss properties of these numbers and their relationship with Stirling numbers of the first kind, and we also introduce a skyscraper sequence.Comment: 7 pages, 1 ...
Khovanova, Tanya, Lewis, Joel Brewster
core  

k-Pell, k-Pell-Lucas and modified k-Pell numbers: some identities and norms of Hankel matrices

open access: yes, 2015
In this paper we present some identities involving terms of k-Pell, k-Pell-Lucas and Modified k-Pell sequences. We also give some results on the column and row norms of Hankel matrices which entries are numbers of these sequences.
P. Vasco   +4 more
semanticscholar   +1 more source

A new approach to the r-Whitney numbers by using combinatorial differential calculus

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
In the present article we introduce two new combinatorial interpretations of the r-Whitney numbers of the second kind obtained from the combinatorics of the differential operators associated to the grammar G := {y → yxm, x → x}.
Méndez Miguel A., Ramírez José L.
doaj   +1 more source

On Cauchy Products of q−Central Delannoy Numbers

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2023
In this study, we have examined q− central Delannoy numbers and their Cauchy products. We have given some related equalities using the properties of recurrence relations.
Halıcı Serpil
doaj   +1 more source

Bernoulli type polynomials on Umbral Algebra

open access: yes, 2011
The aim of this paper is to investigate generating functions for modification of the Milne-Thomson's polynomials, which are related to the Bernoulli polynomials and the Hermite polynomials. By applying the Umbral algebra to these generating functions, we
G Bretti   +8 more
core   +1 more source

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