Results 51 to 60 of about 160,501 (202)

Degenerate r-Bell Polynomials Arising from Degenerate Normal Ordering

open access: yesJournal of Mathematics, 2022
Recently, Kim-Kim introduced the degenerate r-Bell polynomials and investigated some results which are derived from umbral calculus. The aim of this paper is to study some properties of the degenerate r-Bell polynomials and numbers via boson operators ...
Taekyun Kim, Dae San Kim, Hye Kyung Kim
doaj   +1 more source

Jindalrae and Gaenari numbers and polynomials in connection with Jindalrae–Stirling numbers

open access: yesAdvances in Difference Equations, 2020
The aim of this paper is to study Jindalrae and Gaenari numbers and polynomials in connection with Jindalrae–Stirling numbers of the first and second kinds.
Taekyun Kim   +3 more
doaj   +1 more source

Sheffer-Dunkl Sequences Via Umbral Calculus in the Dunkl Context

open access: yesBulletin of the Malaysian Mathematical Sciences Society
Umbral calculus refers to a series of techniques that can be used to prove some polynomial formulas. Nowadays, it mostly involves the study of Sheffer sequences.
Alejandro Gil Asensi   +2 more
semanticscholar   +1 more source

On Umbral Calculus I

open access: yesJournal of Mathematical Analysis and Applications, 2000
The author establishes some weaker characteristic conditions of the operator \(t_c\) and investigates invariant operators. It is shown that if an operator \(T\) can commute with one of the operators \(\sigma_p\) (\(p\neq 0\) and a root of unity), then \(T\) is an invariant operator.
openaire   +2 more sources

A q-umbral calculus

open access: yesJournal of Mathematical Analysis and Applications, 1981
AbstractAn algebraic setting for the Roman-Rota umbral calculus is introduced. It is shown how many of the umbral calculus results follow simply by introducing a comultiplication map and requiring it to be an algebra map. The same approach is used to construct a q-umbral calculus.
Ihrig, Edwin C, Ismail, Mourad E.H
openaire   +1 more source

Some identities of Lah–Bell polynomials

open access: yesAdvances in Difference Equations, 2020
Recently, the nth Lah–Bell number was defined as the number of ways a set of n elements can be partitioned into nonempty linearly ordered subsets for any nonnegative integer n.
Yuankui Ma   +4 more
doaj   +1 more source

p-adicq-umbral Calculus

open access: yesJournal of Mathematical Analysis and Applications, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

From Circular to Bessel Functions: A Transition through the Umbral Method

open access: yesFractal and Fractional, 2017
A common environment in which to place Bessel and circular functions is envisaged. We show, by the use of operational methods, that the Gaussian provides the umbral image of these functions.
Giuseppe Dattoli   +3 more
doaj   +1 more source

Some identities of higher-order Bernoulli, Euler and Hermite polynomials arising from umbral calculus [PDF]

open access: yes, 2013
In this paper, we study umbral calculus to have alternative ways of obtaining our results. That is, we derive some interesting identities of the higher-order Bernoulli, Euler and Hermite polynomials arising from umbral calculus to have alternative ways ...
Dolgy, Dmitry v.   +3 more
core  

Key drivers of at‐vessel mortality in demersal sharks

open access: yesConservation Biology, EarlyView.
Abstract Chondrichthyans are highly vulnerable to fisheries overexploitation, and postcapture mortality poses a significant threat to most species. Global bycatch mitigation guidelines recommend adopting hierarchical decision‐making approaches tailored to species‐specific vulnerabilities and socioeconomic and regulatory contexts.
David Ruiz‐García   +3 more
wiley   +1 more source

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