Results 11 to 20 of about 71,161 (303)

What is $\ldots\ $ a multiple orthogonal polynomial? [PDF]

open access: yesNotices of the American Mathematical Society, 2016
This is an extended version of our note in the Notices of the American Mathematical Society 63 (2016), no. 9, in which we explain what multiple orthogonal polynomials are and where they appear in various applications.Comment: 5 pages, 2 ...
Martínez-Finkelshtein, Andrei   +1 more
core   +3 more sources

On the q-Charlier Multiple Orthogonal Polynomials [PDF]

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2015
We introduce a new family of special functions, namely q-Charlier multiple orthogonal polynomials. These polynomials are orthogonal with respect to q-analogues of Poisson distributions. We focus our attention on their structural properties.
Arvesú, Jorge   +1 more
core   +10 more sources

Mehler-Heine asymptotics for multiple orthogonal polynomials [PDF]

open access: yesProceedings of the American Mathematical Society, 2016
Mehler-Heine asymptotics describe the behavior of orthogonal polynomials near the edges of the interval where the orthogonality measure is supported. For Jacobi polynomials and Laguerre polynomials this asymptotic behavior near the hard edge involves ...
Van Assche, Walter
core   +3 more sources

Computing recurrence coefficients of multiple orthogonal polynomials [PDF]

open access: yesNumerical Algorithms, 2015
Multiple orthogonal polynomials satisfy a number of recurrence relations, in particular there is a $(r+2)$-term recurrence relation connecting the type II multiple orthogonal polynomials near the diagonal (the so-called step-line recurrence relation) and
Filipuk, Galina   +2 more
core   +5 more sources

Multiple orthogonal polynomials [PDF]

open access: bronzeJournal of Computational and Applied Mathematics, 1998
This is a review of the advances in the theory of simultaneous Padé approximants for the past five years. It covers new results in the classification of what appear to be the semiclassical multiple orthogonal polynomials, new applications to number theory, connections with the spectral theory of non-symmetric operators and orthogonal polynomials with ...
Alexander Ivanovich Aptekarev
openalex   +2 more sources

Multiple orthogonal polynomials for classical weights [PDF]

open access: bronzeTransactions of the American Mathematical Society, 2003
A new set of special functions, which has a wide range of applications from number theory to integrability of nonlinear dynamical systems, is described. The multiple orthogonal polynomials with respect to \(p>1\) weights satisfying Pearson's equation. In particular, a classification of multiple orthogonal polynomials with respect to classical weights ...
Alexander Ivanovich Aptekarev   +2 more
openalex   +3 more sources

Christoffel functions for multiple orthogonal polynomials [PDF]

open access: greenJournal of Approximation Theory, 2022
We study weak asymptotic behaviour of the Christoffel--Darboux kernel on the main diagonal corresponding to multiple orthogonal polynomials. We show that under some hypotheses the weak limit of $\tfrac{1}{n} K_n(x,x)\, dμ$ is the same as the limit of the normalized zero counting measure of type II multiple orthogonal polynomials.
Grzegorz Świderski, Walter Van Assche
openalex   +3 more sources

Strong asymptotics for the Pollaczek multiple orthogonal polynomials [PDF]

open access: yesDoklady Mathematics, 2014
The asymptotic properties of multiple orthogonal polynomials with respect to two Pollaczek weights with different parameters are considered. This set of weights is a Nikishin system generated by two measures with unbounded supports; moreover, the second ...
Aptekarev, A. I.   +2 more
core   +7 more sources

Some discrete multiple orthogonal polynomials

open access: greenJournal of Computational and Applied Mathematics, 2003
Zbl#: Zbl 1021 ...
J. Arvesú   +2 more
openalex   +5 more sources

Planar orthogonal polynomials as Type II multiple orthogonal polynomials [PDF]

open access: greenJournal of Physics A: Mathematical and Theoretical, 2019
We show that the planar orthogonal polynomials with $l$ logarithmic singularities in the potential are the multiple orthogonal polynomials (Hermite-Pad polynomials) of Type II with $l$ measures. We also find the ratio between the determinant of the moment matrix corresponding to the multiple orthogonal polynomials and the determinant of the moment ...
Seung-Yeop Lee, Meng Yang
openalex   +4 more sources

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