Results 51 to 60 of about 746,026 (201)
Riesz transforms for Dunkl Hermite expansions
In the present paper, we establish that Riesz transforms for Dunkl Hermite expansion as introduced in [4] are singular integral operators with Hörmander's type conditions and we show that are bounded on $L^p(\mathbb{R}^d; dμ_k) 1 < p < 1.
openaire +2 more sources
An optical approach is proposed for real‐time and high‐precision detection of the magnetostrictive deformation of an yttrium‐iron‐garnet sphere in three dimensions, based on the deformation induced spatial high‐order modes of the scattered field, postselection, and balanced homodyne detection.
Xiaomin Liu +5 more
wiley +1 more source
Boundedness of the Segal-Bargmann Transform on Fractional Hermite-Sobolev Spaces
Let s∈R and 2≤p≤∞. We prove that the Segal-Bargmann transform B is a bounded operator from fractional Hermite-Sobolev spaces WHs,pRn to fractional Fock-Sobolev spaces FRs,p.
Hong Rae Cho, Hyunil Choi, Han-Wool Lee
doaj +1 more source
Fourier transforms and the Hermite-Biehler theorem [PDF]
A new necessary and sufficient condition for real entire functions, represented by Fourier transforms, to have only real zeros is proved. An application of this result to the Riemann ξ
Csordas, G., Varga, R. S.
openaire +1 more source
From tetrachoric to kappa: How to assess reliability on binary scales
Abstract Reliability is crucial in psychometrics, reflecting the extent to which a measurement instrument can discriminate between individuals or items. While classical test theory and intraclass correlation coefficients are well‐established for quantitative scales, estimating reliability for binary outcomes presents unique challenges due to their ...
Sophie Vanbelle
wiley +1 more source
Applications of Hermite transforms in computer algebra
The author presents an algorithm that compute the Hermite transform of a rational function and use it to find linearly independent solutions of a linear differential equation with polynomial coefficients.
openaire +2 more sources
Abstract Traditional item response theory (IRT) models involve symmetric response probability functions, but a developing area of research has focused on asymmetric alternatives. To date, these studies have focused primarily on introducing new asymmetric models, detailing their mathematical formulations, explaining how to interpret their item ...
Hyejin Shim, Wes Bonifay
wiley +1 more source
Dunkl Transform of the Generalized Hermite Polynomials
We investigate the Fp,2 Dunkl transform of generalized Hermite polynomials (GHPs) and obtain their Fp,2 transform explicitly, reducing to the well-known Fourier transform when p=0.
Esra Çekirdek +2 more
doaj +1 more source
Spectral Approach to Plasma Kinetic Simulations Based on Hermite Decomposition in the Velocity Space
Spectral (transform) methods for solution of Vlasov-Maxwell system have shown significant promise as numerical methods capable of efficiently treating fluid-kinetic coupling in magnetized plasmas.
Vadim Roytershteyn, Gian Luca Delzanno
doaj +1 more source
Abstract Measurement non‐invariance arises when the psychometric properties of a scale differ across subgroups, undermining the validity of group comparisons. At the item level, this manifests as differential item functioning (DIF), where item responses differ across groups after controlling for the latent trait.
Gabriel Wallin, Qi Huang
wiley +1 more source

