Results 51 to 60 of about 1,015 (210)

An extension of the bell polynomials

open access: yesComputers & Mathematics with Applications, 2004
The authors introduce an extension of Bell polynomials, also called ``partition polynomials''. For a given integer \(M\) they define a generalized Bell polynomial \(Y_n^{[M-1]}\) as representing the \(n\)th derivative of the composite function \(\Phi(t) := f_{(1)}(f_{(2)}(\cdots(f_{(M)}(t))))\), where the functions \(f_{(M)}\), \dots, \(f_{(2)}\), \(f_{
NATALINI P., RICCI, Paolo Emilio
openaire   +4 more sources

Evaluating the impact of hunter access and harvest regulations on elk movement and resource selection

open access: yesThe Journal of Wildlife Management, EarlyView.
We estimated daily probabilities of female elk transitioning between hunter access strategies during 4 periods of the fall hunting season in the Devil's Kitchen study area in central Montana, USA, 2020‐2023. Elk generally avoided harvest risk by selecting for less hunter access and more restrictive harvest regulations.
Nicole P. Bealer   +5 more
wiley   +1 more source

Differential equations associated with generalized Bell polynomials and their zeros

open access: yesOpen Mathematics, 2016
In this paper, we study differential equations arising from the generating functions of the generalized Bell polynomials.We give explicit identities for the generalized Bell polynomials.
Ryoo Seoung Cheon
doaj   +1 more source

On Bell based Appell polynomials

open access: yesTurkish Journal of Mathematics, 2023
Summary: Recently, several Bell based polynomials such as Bernoulli, Euler, Genocchi and Apostol versions were defined and investigated. The main aim of this paper is to introduce the general family of Bell based Appell polynomials, which includes many new members in addition to the existing ones, and to investigate their properties including ...
Ozarslan, Mehmet Ali   +2 more
openaire   +3 more sources

Pulse Generation by On‐Chip Dispersion Compensation at 8 µm Wavelength

open access: yesLaser &Photonics Reviews, EarlyView.
This work demonstrates on‐chip pulse generation at 8 μm$\mathrm{\mu}\mathrm{m}$ using chirped Bragg gratings in SiGe graded‐index photonic circuits to compensate the quadratic phase of quantum cascade laser frequency combs. With this approach pulses as short as 1.39 ps were produced, close to the transform limit, representing a key step toward compact,
Annabelle Bricout   +17 more
wiley   +1 more source

Analytical and Numerical Soliton Solutions of the Shynaray II‐A Equation Using the G′G,1G$$ \left(\frac{G^{\prime }}{G},\frac{1}{G}\right) $$‐Expansion Method and Regularization‐Based Neural Networks

open access: yesMathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT Nonlinear differential equations play a fundamental role in modeling complex physical phenomena across solid‐state physics, hydrodynamics, plasma physics, nonlinear optics, and biological systems. This study focuses on the Shynaray II‐A equation, a relatively less‐explored parametric nonlinear partial differential equation that describes ...
Aamir Farooq   +4 more
wiley   +1 more source

Extended r-central Bell polynopmials with umbral calculus viewpoint

open access: yesAdvances in Difference Equations, 2019
Recently, extended r-central factorial numbers of the second kind and extended r-central Bell polynomials were introduced and various results of them were investigated.
Lee-Chae Jang   +3 more
doaj   +1 more source

Several explicit formulas for (degenerate) Narumi and Cauchy polynomials and numbers

open access: yesOpen Mathematics, 2021
In this paper, with the aid of the Faà di Bruno formula and by virtue of properties of the Bell polynomials of the second kind, the authors define a kind of notion of degenerate Narumi numbers and polynomials, establish explicit formulas for degenerate ...
Qi Feng   +2 more
doaj   +1 more source

Automated Coregistered Segmentation for Volumetric Analysis of Multiparametric Renal MRI

open access: yesMagnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose This study aims to develop and evaluate a fully automated deep learning‐driven postprocessing pipeline for multiparametric renal MRI, enabling accurate kidney alignment, segmentation, and quantitative feature extraction within a single efficient workflow. Methods Our method has three main stages.
Aya Ghoul   +8 more
wiley   +1 more source

Digital Twin Simulations Toolbox of the Nitrogen‐Vacancy Center in Diamond

open access: yesAdvanced Quantum Technologies, EarlyView.
The Nitrogen‐vacancy (NV) center in diamond is a key platform within quantum technologies. This work introduces a Python based digital‐twin of the NV, where the spin dynamics of the system is simulated without relying on commonly used approximations, such as the adoption of rotating frame. The digital‐twin is validated through three different examples,
Lucas Tsunaki   +3 more
wiley   +1 more source

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