Results 1 to 10 of about 1,536,850 (314)

Some identities involving degenerate Stirling numbers arising from normal ordering [PDF]

open access: goldAIMS Mathematics, 2022
In this paper, we derive some identities and recurrence relations for the degenerate Stirling numbers of the first kind and of the second kind, which are degenerate versions of the ordinary Stirling numbers of the first kind and of the second kind.
Taekyun Kim, Dae San Kim , Hye Kyung Kim
doaj   +3 more sources

Degenerate r-truncated Stirling numbers

open access: yesAIMS Mathematics, 2023
For any positive integer $ r $, the $ r $-truncated (or $ r $-associated) Stirling number of the second kind $ S_{2}^{(r)}(n, k) $ enumerates the number of partitions of the set $ \{1, 2, 3, \dots, n\} $ into $ k $ non-empty disjoint subsets, such that ...
Taekyun Kim, Dae San Kim, Jin-Woo Park
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: goldG3: 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   +4 more sources

Normal ordering associated with λ-Stirling numbers in λ-shift algebra [PDF]

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   +2 more sources

Jindalrae and Gaenari numbers and polynomials in connection with Jindalrae–Stirling numbers [PDF]

open access: goldAdvances 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   +2 more sources

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

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   +2 more sources

Generalized degenerate Stirling numbers arising from degenerate Boson normal ordering [PDF]

open access: yesApplied Mathematics in Science and Engineering, 2023
It is remarkable that, in recent years, intensive studies have been done for degenerate versions of many special polynomials and numbers and have yielded many interesting results.
Taekyun Kim, Dae San Kim, Hye Kyung Kim
doaj   +2 more sources

Multi-Lah numbers and multi-Stirling numbers of the first kind [PDF]

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   +2 more sources

Restricted $r$-Stirling Numbers and their Combinatorial Applications [PDF]

open access: green, 2018
We study set partitions with $r$ distinguished elements and block sizes found in an arbitrary index set $S$. The enumeration of these $(S,r)$-partitions leads to the introduction of $(S,r)$-Stirling numbers, an extremely wide-ranging generalization of ...
Beáta Bényi   +3 more
openalex   +5 more sources

Asymptotic Estimates for Second Kind Generalized Stirling Numbers [PDF]

open access: goldJournal of Applied Mathematics, 2013
Asymptotic formulas for the generalized Stirling numbers of the second kind with integer and real parameters are obtained and ranges of validity of the formulas are established.
Cristina B. Corcino, Roberto B. Corcino
doaj   +2 more sources

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