Results 1 to 10 of about 561,686 (251)

Performance enhancement of high order Hahn polynomials using multithreading. [PDF]

open access: goldPLoS ONE, 2023
Orthogonal polynomials and their moments have significant role in image processing and computer vision field. One of the polynomials is discrete Hahn polynomials (DHaPs), which are used for compression, and feature extraction.
Basheera M Mahmmod   +5 more
doaj   +5 more sources

Hahn polynomials and the Burnside process [PDF]

open access: greenThe Ramanujan Journal, 2021
We study a natural Markov chain on $$\{0,1,\ldots ,n\}$$ { 0 , 1 , … , n } with eigenvectors the Hahn polynomials. This explicit diagonalization makes it possible to get sharp rates of convergence to stationarity.
Persi Diaconis, Chenyang Zhong
semanticscholar   +6 more sources

Fourier Transform of the Orthogonal Polynomials on the Unit Ball and Continuous Hahn Polynomials

open access: yesAxioms, 2022
Some systems of univariate orthogonal polynomials can be mapped into other families by the Fourier transform. The most-studied example is related to the Hermite functions, which are eigenfunctions of the Fourier transform.
Esra Güldoğan Lekesiz   +2 more
doaj   +5 more sources

New Karhunen-Loève expansions based on Hahn polynomials with application to a Sobolev test for uniformity on Johnson graphs

open access: diamondComptes Rendus. Mathématique
We give a new family of Karhunen-Loève expansions involving Hahn polynomials. This enables us to introduce discrete analogues of Watson statistics, and a test for uniformity on Johnson’s graphs. We use the fact that the zonal spherical functions on these
Pycke, Jean-Renaud
doaj   +3 more sources

An Exactly Solvable Spin Chain Related to Hahn Polynomials [PDF]

open access: diamondSymmetry, Integrability and Geometry: Methods and Applications, 2011
We study a linear spin chain which was originally introduced by Shi et al. [Phys. Rev. A 71 (2005), 032309, 5 pages], for which the coupling strength contains a parameter α and depends on the parity of the chain site.
Neli I. Stoilova, Joris Van der Jeugt
doaj   +7 more sources

A Discrete Cramér–Von Mises Statistic Related to Hahn Polynomials with Application to Goodness-of-Fit Testing for Hypergeometric Distributions [PDF]

open access: goldAxioms
We give the Karhunen–Loève expansion of the covariance function of a family of discrete weighted Brownian bridges, appearing as discrete analogues of continuous Gaussian processes related to Cramér –von Mises and Anderson–Darling statistics. This analogy
Jean-Renaud Pycke
doaj   +3 more sources

Fast and stable computation of higher-order Hahn polynomials and Hahn moment invariants for signal and image analysis. [PDF]

open access: yesMultimed Tools Appl, 2021
This article presents, on the one hand, new algorithms for the fast and stable computation of discrete orthogonal Hahn polynomials of high order (HPs) based on the elimination of all gamma and factorial functions that cause the numerical fluctuations of ...
Daoui A   +3 more
europepmc   +2 more sources

Fast Computation of Hahn Polynomials for High Order Moments [PDF]

open access: yesIEEE Access, 2022
Discrete Hahn polynomials (DHPs) and their moments are considered to be one of the efficient orthogonal moments and they are applied in various scientific areas such as image processing and feature extraction.
Basheera M. Mahmmod   +3 more
doaj   +2 more sources

Multivariate Jacobi and Laguerre polynomials, infinite-dimensional extensions, and their probabilistic connections with multivariate Hahn and Meixner polynomials [PDF]

open access: bronze, 2011
Multivariate versions of classical orthogonal polynomials such as Jacobi, Hahn, Laguerre, Meixner are reviewed and their connection explored by adopting a probabilistic approach.
Griffiths, Robert C., Spanò, Dario
core   +3 more sources

Bispectrality of the Complementary Bannai-Ito Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2013
A one-parameter family of operators that have the complementary Bannai-Ito (CBI) polynomials as eigenfunctions is obtained. The CBI polynomials are the kernel partners of the Bannai-Ito polynomials and also correspond to a q→−1 limit of the Askey-Wilson ...
Vincent X. Genest   +2 more
doaj   +5 more sources

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