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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   +4 more sources

Constructing Krall-Hahn orthogonal polynomials [PDF]

open access: greenJournal of Mathematical Analysis and Applications, 2014
Given a sequence of polynomials $(p_n)_n$, an algebra of operators $\mathcal A$ acting in the linear space of polynomials and an operator $D_p\in \mathcal A$ with $D_p(p_n)=\theta_np_n$, where $\theta_n$ is any arbitrary eigenvalue, we construct a new ...
Antonio J. Durán   +3 more
core   +4 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

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

On the Limit from q-Racah Polynomials to Big q-Jacobi Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2011
A limit formula from q-Racah polynomials to big q-Jacobi polynomials is given which can be considered as a limit formula for orthogonal polynomials.
Tom H. Koornwinder
doaj   +7 more sources

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

open access: goldIEEE 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

Dual -1 Hahn polynomials: "classical" polynomials beyond the Leonard duality [PDF]

open access: green, 2011
We introduce the -1 dual Hahn polynomials through an appropriate $q \to -1$ limit of the dual q-Hahn polynomials. These polynomials are orthogonal on a finite set of discrete points on the real axis, but in contrast to the classical orthogonal ...
Tsujimoto, Satoshi   +2 more
core   +5 more sources

The algebra of dual -1 Hahn polynomials and the Clebsch-Gordan problem of sl_{-1}(2) [PDF]

open access: green, 2013
The algebra H of the dual -1 Hahn polynomials is derived and shown to arise in the Clebsch-Gordan problem of sl_{-1}(2). The dual -1 Hahn polynomials are the bispectral polynomials of a discrete argument obtained from a q-> -1 limit of the dual q-Hahn ...
Alexei Zhedanov   +6 more
core   +2 more sources

Krylov complexity and orthogonal polynomials

open access: yesNuclear Physics B, 2022
Krylov complexity measures operator growth with respect to a basis, which is adapted to the Heisenberg time evolution. The construction of that basis relies on the Lanczos algorithm, also known as the recursion method.
Wolfgang Mück, Yi Yang
doaj   +1 more source

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