Results 21 to 30 of about 416 (164)

Some comments on Rota's Umbral Calculus [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 1980
AbstractRota's Umbral Calculus is put in the context of general Fourier analysis. Also, some shortcuts in the proofs are illustrated and a new characterization of sequences of binomial type is given. Finally it is shown that there are few (classical) orthogonal polynomials of binomial type.
Zeilberger, Doron
openaire   +2 more sources

An application of the umbral calculus [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 1990
AbstractThe partial difference equation r(i, j) = r(i, j − 1) + r(i − 1, j) + r(i − 1, J + 1), where r(i, j) are defined for integer numbers i and j, i ⩾ 0, by the conditions r(0, j) = 1 for all j and r(i, −1) = 0 for i ⩾ 1 is solved. For i ⩾ 0 and j ⩾ 0 a combinatorial meaning of numbers r(i, j) is given.
Razpet, Marko
openaire   +2 more sources

An infinite dimensional umbral calculus [PDF]

open access: yesJournal of Functional Analysis, 2019
The aim of this paper is to develop foundations of umbral calculus on the space $\mathcal D'$ of distributions on $\mathbb R^d$, which leads to a general theory of Sheffer polynomial sequences on $\mathcal D'$. We define a sequence of monic polynomials on $\mathcal D'$, a polynomial sequence of binomial type, and a Sheffer sequence.
Dmitri Finkelshtein   +3 more
openaire   +6 more sources

Some Identities of Fully Degenerate r-Dowling Polynomials Arising from λ-Umbral Calculus [PDF]

open access: yesMathematics
This paper introduces fully Dowling polynomials of the first and second kinds, which are degenerate versions of the ordinary Dowling polynomials. Then, several important identities for these degenerate polynomials are derived.
Xiaoxue Li, Siqi Dong, Yuankui Ma
doaj   +2 more sources

Umbral Calculus and New Trigonometries [PDF]

open access: yes, 2023
The present work proposes an overview of the Umbral calculus and of its wide range of applicability. The aim is to provide new tools, embedding umbral, symbolic and operatorial methods to be exploited in pure and applied Mathematics, in the research ...
Silvia Licciardi
core   +1 more source

Representations by degenerate Daehee polynomials

open access: yesOpen Mathematics, 2022
In this paper, we consider the problem of representing any polynomial in terms of the degenerate Daehee polynomials and more generally of the higher-order degenerate Daehee polynomials.
Kim Taekyun   +3 more
doaj   +1 more source

Degenerate Bell polynomials associated with umbral calculus

open access: yesJournal of Inequalities and Applications, 2020
Carlitz initiated a study of degenerate Bernoulli and Euler numbers and polynomials which is the pioneering work on degenerate versions of special numbers and polynomials.
Taekyun Kim   +4 more
doaj   +1 more source

Formal Calculus and Umbral Calculus [PDF]

open access: yesThe Electronic Journal of Combinatorics, 2010
We use the viewpoint of the formal calculus underlying vertex operator algebra theory to study certain aspects of the classical umbral calculus. We begin by calculating the exponential generating function of the higher derivatives of a composite function, following a very short proof which naturally arose as a motivating computation related to a ...
openaire   +3 more sources

Degenerate Lah–Bell polynomials arising from degenerate Sheffer sequences

open access: yesAdvances in Difference Equations, 2020
Umbral calculus is one of the important methods for obtaining the symmetric identities for the degenerate version of special numbers and polynomials. Recently, Kim–Kim (J. Math. Anal. Appl.
Hye Kyung Kim
doaj   +1 more source

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