Results 1 to 10 of about 2,633 (260)

The Peak of Noncentral Stirling Numbers of the First Kind [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2015
We locate the peak of the distribution of noncentral Stirling numbers of the first kind by determining the value of the index corresponding to the maximum value of the distribution.
Roberto B. Corcino   +2 more
doaj   +3 more sources

A Faster and More Accurate Algorithm for Calculating Population Genetics Statistics Requiring Sums of Stirling Numbers of the First Kind [PDF]

open access: yesG3: Genes, Genomes, Genetics, 2020
Ewen’s sampling formula is a foundational theoretical result that connects probability and number theory with molecular genetics and molecular evolution; it was the analytical result required for testing the neutral theory of evolution, and has since ...
Swaine L. Chen, Nico M. Temme
doaj   +2 more sources

Variations of central limit theorems and Stirling numbers of the first kind [PDF]

open access: yesDiscrete Mathematics Letters, 2023
We construct a new parametrization of double sequences $\{A_{n,k}(s)\}_{n,k}$ between $A_{n,k}(0)= \binom{n-1}{k-1}$ and $A_{n,k}(1)= \frac{1}{n!}\stirl{n}{k}$, where $\stirl{n}{k}$ are the unsigned Stirling numbers of the first kind. For each $s$ we prove a central limit theorem and a local limit theorem.
Bernhard Heim, Markus Neuhauser
doaj   +3 more sources

Note on the Higher-Order Derivatives of the Hyperharmonic Polynomials and the r-Stirling Polynomials of the First Kind

open access: yesAxioms, 2022
In this paper, we focus on the higher-order derivatives of the hyperharmonic polynomials, which are a generalization of the ordinary harmonic numbers. We determine the hyperharmonic polynomials and their successive derivatives in terms of the r-Stirling ...
José L. Cereceda
doaj   +1 more source

Normal ordering associated with λ-Stirling numbers in λ-shift algebra

open access: yesDemonstratio Mathematica, 2023
It is known that the Stirling numbers of the second kind are related to normal ordering in the Weyl algebra, while the unsigned Stirling numbers of the first kind are related to normal ordering in the shift algebra.
Kim Taekyun, Kim Dae San, Kim Hye Kyung
doaj   +1 more source

Study on r-truncated degenerate Stirling numbers of the second kind

open access: yesOpen Mathematics, 2022
The degenerate Stirling numbers of the second kind and of the first kind, which are, respectively, degenerate versions of the Stirling numbers of the second kind and of the first kind, appear frequently when we study various degenerate versions of some ...
Kim Taekyun, Kim Dae San, Kim Hyekyung
doaj   +1 more source

A note on degenerate r-Stirling numbers

open access: yesJournal of Inequalities and Applications, 2020
The aim of this paper is to study the unsigned degenerate r-Stirling numbers of the first kind as degenerate versions of the r-Stirling numbers of the first kind and the degenerate r-Stirling numbers of the second kind as those of the r-Stirling numbers ...
Taekyun Kim   +3 more
doaj   +1 more source

On the p-adic properties of Stirling numbers of the first kind [PDF]

open access: yesActa Mathematica Hungarica, 2020
Let $n, k$ and $a$ be positive integers. The Stirling numbers of the first kind, denoted by $s(n,k)$, count the number of permutations of $n$ elements with $k$ disjoint cycles. Let $p$ be a prime. In recent years, Lengyel, Komatsu and Young, Leonetti and Sanna, Adelberg, Hong and Qiu made some progress in the study of the $p$-adic valuations of $s(n,k)$
Hong, S. F., Qiu, M.
openaire   +2 more sources

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

Multi-Lah numbers and multi-Stirling numbers of the first kind

open access: yesAdvances in Difference Equations, 2021
In this paper, we introduce multi-Lah numbers and multi-Stirling numbers of the first kind and recall multi-Bernoulli numbers, all of whose generating functions are given with the help of multiple logarithm.
Dae San Kim   +4 more
doaj   +1 more source

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