Results 71 to 80 of about 22,462 (245)

A Simplified Modeling Framework of Higher‐Order Topological States in Elastic Metaplates

open access: yesSmall Structures, Volume 6, Issue 11, November 2025.
A simplified elastic metaplate using periodically arranged plate‐pillar clusters (PPCs) is constructed. By integrating dual‐topology PPCs and developing a mass‐spring model with multiple scattering theory, theoretical modeling of higher‐order topological corner states in elastic wave systems, validated through simulations and experiments, is enabled ...
Nan Gao   +9 more
wiley   +1 more source

Identification of random coefficient latent utility models

open access: yesQuantitative Economics, Volume 16, Issue 4, Page 1223-1265, November 2025.
This paper provides nonparametric identification results for random coefficient distributions in perturbed utility models. We cover discrete choice and models of multiple purchases. We establish identification using variation in mean quantities. The results apply even when an analyst observes only aggregate demands but not whether goods are chosen ...
Roy Allen, John Rehbeck
wiley   +1 more source

Temperaturas estacionarias en un cilindro hueco con conductividad térmica variable usando una transformada de Hankel Stationary temperatures in a hollow cylinder with variable thermic conductivity using a Hankel transform

open access: yesRevista Técnica de la Facultad de Ingeniería, 2002
Resumen En el presente trabajo se usa la transformada finita generalizada de Hankel de tercera clase para determinar la distribución estacionaria de temperatura u(r, z) en un cilindro hueco con conductividad térmica variable.Abstract In the present work ...
Alfredo Villalobos
doaj  

Data‐driven forecasting of ship motions in waves using machine learning and dynamic mode decomposition

open access: yesInternational Journal of Adaptive Control and Signal Processing, Volume 39, Issue 10, Page 2119-2142, October 2025.
Summary Data‐driven forecasting of ship motions in waves is investigated through feedforward and recurrent neural networks as well as dynamic mode decomposition. The goal is to predict future ship motion variables based on past data collected on the field, using equation‐free approaches.
Matteo Diez   +2 more
wiley   +1 more source

Pitt's inequalities and uncertainty principle for generalized Fourier transform

open access: yes, 2015
We study the two-parameter family of unitary operators \[ \mathcal{F}_{k,a}=\exp\Bigl(\frac{i\pi}{2a}\,(2\langle k\rangle+{d}+a-2 )\Bigr) \exp\Bigl(\frac{i\pi}{2a}\,\Delta_{k,a}\Bigr), \] which are called $(k,a)$-generalized Fourier transforms and ...
Gorbachev, Dmitry   +2 more
core  

Forma general de la transformada finita de Hankel General form of the finite Hankel transform

open access: yesRevista Técnica de la Facultad de Ingeniería, 2008
En este trabajo de investigación se obtiene una forma general de la Transformada Finita de Hankel en el intervalo [a, b], usando la teoría de las transformadas finitas de Sturm-Liouville.
Ovidio Pirela Cristalino   +1 more
doaj  

Wavelet multipliers for the linear canonical deformed Hankel transform and applications

open access: yesAIMS Mathematics
In this paper, we introduce the notion of a wavelet multiplier in the setting of the linear canonical deformed Hankel transform (LCDHT), which depends on a symbol and two bounded functions.
Saifallah Ghobber, Hatem Mejjaoli
doaj   +1 more source

INTEGRAL TRANSFORMS WITH THE HOMOTOPY PERTURBATION METHOD AND SOME APPLICATIONS [PDF]

open access: yes
This paper applies He's homotopy perturbation method to compute a large variety of integral transforms. As illustration, the paper gives special attention to the Esscher transform, the Fourier transform, the Hankel transform, the Mellin transform, the ...
Jules Sadefo Kamdem
core  

The asymptotics a Bessel-kernel determinant which arises in Random Matrix Theory [PDF]

open access: yes, 2010
In Random Matrix Theory the local correlations of the Laguerre and Jacobi Unitary Ensemble in the hard edge scaling limit can be described in terms of the Bessel kernel (containing a parameter $\alpha$).
Ehrhardt, Torsten
core  

Discontinuities in an axisymmetric generalized thermoelastic problem

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
This paper deals with discontinuities analysis in the temperature, displacement, and stress fields of a thick plate whose lower and upper surfaces are traction-free and subjected to a given axisymmetric temperature distribution.
Moncef Aouadi
doaj   +1 more source

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