Results 11 to 20 of about 11,604,669 (184)

Solutions of Umbral Dirac-Type Equations

open access: yesMathematics
The aim of this work is to study the method of the normalized systems of functions. The normalized systems of functions with respect to the Dirac operator in the umbral Clifford analysis are constructed.
Hongfen Yuan, Valery Karachik
doaj   +4 more sources

On Umbral Properties of a Family of Hyperbolic-Like Functions Appearing in Magnetic Transport Problem

open access: yesReports on Mathematical Physics, 2023
Umbral operational techniques offer sturdy mechanism in the studies of special functions and special polynomials. The techniques of umbral calculus are employed to derive properties of families of exponential-like functions and their hyperbolic forms ...
Silvia Licciardi
exaly   +2 more sources

Operational, umbral methods, Borel transform and negative derivative operator techniques

open access: yesIntegral Transforms and Special Functions, 2020
Differintegral methods, namely those techniques using differential and integral operators on the same footing, currently exploited in calculus, provide a fairly unexhausted source of tools to be applied to a wide class of problems involving the theory of special functions and not only.
G. Dattoli, S. Licciardi
exaly   +5 more sources

Special Numbers and Polynomials Including Their Generating Functions in Umbral Analysis Methods [PDF]

open access: yesAxioms, 2018
In this paper, by applying umbral calculus methods to generating functions for the combinatorial numbers and the Apostol type polynomials and numbers of order k, we derive some identities and relations including the combinatorial numbers, the Apostol-Bernoulli polynomials and numbers of order k and the Apostol-Euler polynomials and numbers of order k ...
Yılmaz Şimşek
openaire   +6 more sources

Umbral Interpolation: A Survey

open access: yesMathematics
A survey on recent umbral polynomial interpolation is presented. Some new results are given, following a matrix-determinant approach.
Anna Napoli   +2 more
exaly   +2 more sources

miker83z/umbral-rs: umbral-rs-v0.0.2

open access: yes, 2022
Rust implementation of Umbral: https://github.com/nucypher ...
Mirko Zichichi
core   +1 more source

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

Umbral Methods, Combinatorial Identities and Harmonic Numbers

open access: yesJournal Applied Mathematics, 2012
We analyse and demonstrate how umbral methods can be applied for the study of the problems, involving combinatorial calculus and harmonic numbers. We demonstrate their efficiency and we find the general procedure to frame new and existent identities within a unified framework, amenable of further generalizations.
K. V. Zhukovsky, G. Dattoli
openaire   +3 more sources

Los políticos de Umbral: retratos poéticos y antipoéticos [PDF]

open access: yes, 2015
This article addresses the use of poetic features in Francisco Umbral’s work by analysing his portraits of politicians. Although Umbral was not strictly speaking a poet, his texts were written in a very poetic manner, and this can be seen in those ...
Laín Corona, Guillermo
core   +1 more source

Operator Ordering and Solution of Pseudo-Evolutionary Equations

open access: yesAxioms, 2019
The solution of pseudo initial value differential equations, either ordinary or partial (including those of fractional nature), requires the development of adequate analytical methods, complementing those well established in the ordinary differential ...
Nicolas Behr   +2 more
doaj   +1 more source

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