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Let Y be a random variable whose moment-generating function exists in some neighborhood of the origin. While probabilistic Stirling numbers of the first and second kind have been introduced, early definitions often failed to satisfy…

数论 · 数学 2026-01-21 Dae San Kim , Taekyun Kim

In this paper, we investigate some properties and identities for degenerate Euler polynomials in connection with degenerate Bernstein polynomials by means of fermionic p-adic integrals on Zp and generating functions. In addition, we study…

数论 · 数学 2019-04-19 Won Joo Kim , Dae San Kim , Han Young Kim , Taekyun Kim

Following Spivey's pivotal discovery of a recurrence relation for Bell numbers, significant research has emerged concerning various generalizations of Bell numbers and polynomials. For example, Kim and Kim established a Spivey-type…

数论 · 数学 2025-08-26 Taekyun Kim , Dae San Kim

In this paper, we consider the problem of representing any polynomial in terms of the degenerate Bernoulli polynomials and more generally of the higher-order degenerate Bernoulli polynomials. We derive explicit formulas with the help of…

数论 · 数学 2021-08-12 Dae san Kim , Taekyun Kim

In this paper, we introduce the degenerate gamma random variables which are connected with the degenerate gamma functions and the degenerate exponential functions, and deduce the expectation and variance of those random variables.

概率论 · 数学 2020-04-21 Taekyun Kim , Dae san Kim , Jongkyum Kwon , Hyunseok Lee

Let Y be a random variable satisfying specific moment conditions. This paper introduces and investigates probabilistic heterogeneous Stirling numbers of the second kind and probabilistic heterogeneous Bell polynomials. These structures…

数论 · 数学 2026-01-16 Taekyun Kim , Dae San Kim

In this paper, we introduce the degenerate multiple polyexponential functions which are multiple versions of the degenerate modified polyexponential functions. Then we consider the degenerate multi-poly-Genocchi polynomials which are…

数论 · 数学 2020-05-18 Taekyun Kim , Dae San Kim , Han Young kim , Jongkyum Kwon

In this paper, by introducing the degenerate Fubini-type polynomials, we give several relations with the help of the Fa\`a di Bruno formula and some properties of Bell polynomials, and generating function methods. Also, we derive some new…

数论 · 数学 2021-04-20 Muhammet Cihat Dağli

In this paper, we introduce the Lah-Bell numbers and their natural extensions, namely the Lah-Bell polynomials, and derive some basic properties of such numbers and polynomials by using elementary methods. In addition, we consider the…

数论 · 数学 2020-07-28 Dae San Kim , Taekyun Kim

The aim of this paper is to study the fully degenerate Bernoulli polynomials and numbers, which are a degenerate version of Bernoulli polynomials and numbers and arise naturally from the Volkenborn integral of the degenerate exponential…

数论 · 数学 2022-02-11 Taekyun Kim , Dae San Kim

Associated to each random variable $Y$ having a finite moment generating function, we introduce a different generalization of the Stirling numbers of the second kind. Some characterizations and specific examples of such generalized numbers…

数论 · 数学 2018-03-14 José A. Adell , Alberto Lekuona

The aim of this paper is to study degenerate Eulerian polynomials and degenerate Eulerian numbers, respectively as degenerate versions of the Eulerian polynomials and the Eulerian numbers, and to derive some of their properties.…

数论 · 数学 2024-12-05 Taekyun Kim , Dae san Kim

We consider the class $\mathcal{E}_t(Y)$ of Appell polynomials whose generating function is given by means of a real power $t$ of the moment generating function of a certain random variable $Y$. For such polynomials, we obtain explicit…

数论 · 数学 2017-11-08 José A. Adell , Alberto Lekuona

This paper addresses the unnatural appearance of the two-variable degenerate Fubini polynomials in a recently derived Spivey-type recurrence relation for the fully degenerate Bell polynomials. To solve this, we introduce a new family of…

组合数学 · 数学 2025-11-18 Taekyun Kim , Dae San Kim

Many mathematicians have been studying various degenerate versions of special polynomials and numbers in some arithmetic and combinatorial aspects. Our main focus here is a new type of degenerate poly-Euler polynomials and numbers. This…

组合数学 · 数学 2022-10-19 Yuankui Ma , Taekyun Kim , Hongze Li

In this paper, we study the degenerate central complete and incomplete Bell polynomials which are degenerate versions of the recently introduced central complete and incomplete Bell polynomials and also central analogues for the degenerate…

数论 · 数学 2019-02-22 Taekyun Kim , Dae San Kim , Gwan-Woo Jang

I recent years, many mathematicians studied various degenerate version of some spcial polynomials of which quite a few interesting results were discovered. In this paper, we introduce the type 2 degenerate Bernoulli polynomials of the…

数论 · 数学 2019-08-20 Taekyun Kim , Lee-Chae jang , Dae San Kim , Han-Young Kim

Recently, Bovadzhiev studied a power series whose coefficients are binomial expressions and extended some known formulas involving classical special functions and polynomials. The aim of this paper is to adopt his ideas to express several…

数论 · 数学 2021-12-17 Taekyun Kim , Dae San Kim

In this paper, we study the degenerate version of the new type Euler polynomials, namely degenerate cosine-Euler polynomials and sime-Euler polynomials and also corresponding ones for Bernoulli polynomials, namely degenerate cosine…

数论 · 数学 2019-08-13 Dae San Kim , Taekyun kim , Hyunseok Lee

The aim of this paper is to investigate some properties, recurrence relations and identities involving degenerate Stirling numbers of both kinds associated with degenerate hyperharmonic numbers and also with degenerate Bernolli, degenerate…

数论 · 数学 2023-04-05 Taekyun Kim , Dae San Kim