Results 21 to 30 of about 152,870 (324)

Extended Bernoulli and Stirling matrices and related combinatorial identities [PDF]

open access: yes, 2013
In this paper we establish plenty of number theoretic and combinatoric identities involving generalized Bernoulli and Stirling numbers of both kinds. These formulas are deduced from Pascal type matrix representations of Bernoulli and Stirling numbers ...
Can, Mümün, Dağlı, M. Cihat
core   +1 more source

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

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   +1 more source

Stirling Numbers of Uniform Trees and Related Computational Experiments

open access: yesAlgorithms, 2023
The Stirling numbers for graphs provide a combinatorial interpretation of the number of cycle covers in a given graph. The problem of generating all cycle covers or enumerating these quantities on general graphs is computationally intractable, but recent
Amir Barghi, Daryl DeFord
doaj   +1 more source

Effects of different working gases on the heat transfer enhancement performance of a heating tube with spiral insert under oscillatory flow

open access: yesEnergy Reports, 2023
The working gas type had an important effect on the heat transfer performance of the turbulence device in the heater of Stirling engine, but the related researches were scarce, especially under the oscillatory flow.
Feng Xin   +4 more
doaj   +1 more source

Oscillatory heat transfer correlation for annular mini channel stirling heater

open access: yesCase Studies in Thermal Engineering, 2020
Annular mini-channel Stirling heater are replacing conventional tubular heater in modern free piston Stirling engines due to reliability and manufacturing issues.
Umair Munir   +4 more
doaj   +1 more source

Dirichlet series and series with Stirling numbers

open access: yesCubo, 2023
This paper presents a number of identities for Dirichlet series and series with Stirling numbers of the first kind. As coefficients for the Dirichlet series we use Cauchy numbers of the first and second kinds, hyperharmonic numbers, derangement numbers ...
Khristo Boyadzhiev
doaj   +1 more source

An Effective Tableau System for the Linear Time µ-Calculus [PDF]

open access: yes, 1996
We present a tableau system for the model checking problem of the linear time µ-calculus. It improves the system of Stirling and Walker by simplifying the success condition for a tableau. In our system success for a leaf is determined by the path leading
Bradfield, Julian   +2 more
core   +3 more sources

The Legendre–Stirling numbers

open access: yesDiscrete Mathematics, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Andrews, G.E.   +2 more
openaire   +1 more source

Some results on p-adic valuations of Stirling numbers of the second kind

open access: yesAIMS Mathematics, 2020
Let $n$ and $k$ be nonnegative integers. The Stirling number of the second kind, denoted by $S(n, k)$, is defined as the number of ways to partition a set of $n$ elements into exactly $k$ nonempty subsets and we have $$ S(n, k)=\frac{1}{k!}\sum_{i=0}^{k}(
Yulu Feng, Min Qiu
doaj   +1 more source

Stochastic heat engines beyond a unique definition of temperature

open access: yesPhysical Review Research, 2023
When Carnot and Stirling initially conceptualized heat engines, temperature unambiguously represented our everyday perception of cold and hot. However, as this energy scale is expanded to measure the strength of noise in general nonequilibrium heat baths,
Chia-Hao Chang   +4 more
doaj   +1 more source

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