Results 111 to 120 of about 149,574 (327)

A Linear‐to‐Linear Cross‐Polarization Conversion q‐BIC Metasurface for Transmission Mode Mid‐Infrared Spectral Filtering

open access: yesLaser &Photonics Reviews, EarlyView.
Manipulating the ultranarrow linewidth spectral features of quasi bound states in the continuum is challenging. A metasurface supporting linear‐to‐linear cross‐polarization coupling efficiency surpassing 25% is proposed to address the issue. Less than 100 nm linewidth is achieved, enabling the device to be applied to wavelength‐selective polarization ...
Shuhao Wu   +5 more
wiley   +1 more source

Explicit formulae for Bernoulli numbers

open access: yesAIMS Mathematics
By examining the connection coefficients, we systematically review and extend (with an extra integer parameter) several double sum expressions for the Bernoulli numbers. New summation formulae are also established explicitly.
Nadia N. Li , Wenchang Chu
doaj   +1 more source

Asymptotic Properties for a General Class of Szász–Mirakjan–Durrmeyer Operators

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT In this paper, we introduce a general family of Szász–Mirakjan–Durrmeyer type operators depending on an integer parameter j∈ℤ$$ j\in \mathbb{Z} $$. They can be viewed as a generalization of the Szász–Mirakjan–Durrmeyer operators, Phillips operators, and corresponding Kantorovich modifications of higher order.
Ulrich Abel   +3 more
wiley   +1 more source

Exploring probabilistic Bernstein polynomials: identities and applications

open access: yesApplied Mathematics in Science and Engineering
In this paper, we introduce the probabilistic Bernstein polynomials and derive new and interesting correlations among several special functions and special number sequences such as Euler polynomials, Bernoulli polynomials of higher order, Frobenius–Euler
Ayse Karagenc   +2 more
doaj   +1 more source

Euler-Mahonian Statistics On Ordered Set Partitions (II)

open access: yes, 2007
We study statistics on ordered set partitions whose generating functions are related to $p,q$-Stirling numbers of the second kind. The main purpose of this paper is to provide bijective proofs of all the conjectures of \stein (Arxiv:math.CO/0605670). Our
Kasraoui, Anisse, Zeng, Jiang
core   +2 more sources

Variability in the movement and foraging behaviour of female Eurasian lynx during the denning season across Europe

open access: yesOikos, EarlyView.
Animal movement and reproductive behaviour are crucial components of ecological and evolutionary processes. After parturition, the behaviour of reproducing females adapts to the needs of their offspring, including thermoregulation, protection and food provisioning.
Naima Dalpiaz   +17 more
wiley   +1 more source

Heat engines for scale invariant systems dual to black holes

open access: yesCommunications Physics
According to holography, a black hole is dual to a thermal state in a strongly coupled quantum system. One of the best-known examples of holography is the Anti-de Sitter/Conformal Field Theory (AdS/CFT) correspondence.
Nikesh Lilani, Manus R. Visser
doaj   +1 more source

A divisibility property for stirling numbers

open access: yesJournal of Number Theory, 1978
AbstractIn this paper we calculate which prime powers ps divide Δn, m = g.c.d.{k! S(n, k)|m ≤ k ≤ n} for s < p. Here S(n, k) is a Stirling number of the second kind.
openaire   +3 more sources

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