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We present an algebraic theory of orthogonal polynomials in several variables that includes classical orthogonal polynomials as a special case. Our bottom line is a straightforward connection between apolarity of binary forms and the inner…

Rings and Algebras · Mathematics 2014-10-20 Pasquale Petrullo , Domenico Senato , Rosaria Simone

We consider polynomials that are orthogonal over an analytic Jordan curve L with respect to a positive analytic weight, and show that each such polynomial of sufficiently large degree can be expanded in a series of certain integral…

Classical Analysis and ODEs · Mathematics 2009-03-19 Erwin Miña-Díaz

Polynomials known as Multiple Orthogonal Polynomials in a single variable are polynomials that satisfy orthogonality conditions concerning multiple measures and play a significant role in several applications such as Hermite-Pad\'e…

Classical Analysis and ODEs · Mathematics 2026-01-13 Lidia Fernández , Juan Antonio Villegas

The study of several naturally arising "nearest neighbours" random walks benefits from the study of the associated orthogonal polynomials and their orthogonality measure. I consider extensions of this approach to a larger class of random…

Probability · Mathematics 2007-05-23 F. Alberto Grunbaum

In this paper we give new identities involving q-Euler polynomials of higher order.

Number Theory · Mathematics 2015-05-14 Taekyun Kim , Y. H. Kim

In this paper we obtain new results about the orthogonality measure of orthogonal polynomials on the unit circle, through the study of unitary truncations of the corresponding unitary multiplication operator, and the use of the…

Classical Analysis and ODEs · Mathematics 2007-05-23 Maria J. Cantero , Leandro Moral , Luis Velazquez

We consider semiclassical orthogonal polynomials on the unit circle associated with a weight function that satisfy a Pearson-type differential equation involving two polynomials of degree at most three. Structure relations and difference…

Classical Analysis and ODEs · Mathematics 2025-06-05 Cleonice F. Bracciali , Karina S. Rampazzi , Luana L. Silva Ribeiro

There has been considerable recent literature connecting Poncelet's theorem to ellipses, Blaschke products and numerical ranges, summarized, for example, in the recent book [11]. We show how those results can be understood using ideas from…

Spectral Theory · Mathematics 2021-08-11 Andrei Martinez-Finkelshtein , Brian Simanek , Barry Simon

In this paper, we study properties of polynomials over division rings. Moreover, we present formulas for finding roots of some polynomials

Rings and Algebras · Mathematics 2024-03-19 Alina G. Goutor , Sergey V. Tikhonov

We extend the authors' previous work on Wiener-Wintner double recurrence theorem to the case of polynomials.

Dynamical Systems · Mathematics 2014-08-26 Idris Assani , Ryo Moore

We discuss the construction of oscillator-like systems associated with orthogonal polynomials on the example of the Fibonacci oscillator. In addition, we consider the dimension of the corresponding lie algebras.

Mathematical Physics · Physics 2015-03-02 V. V. Borzov , E. V. Damaskinsky

In this paper, we give some recurrence formula and new and interesting identities for the poly-Bernoulli numbers and polynomials which are derived from umbral calculus.

Number Theory · Mathematics 2013-07-01 Dae san Lom , Taekyun Kim

In this paper we give an asymptotic of the coefficients of the orthogonal polynomials on the unit circle, with respect of a weight of type $\displaystyle{ f : \theta \mapsto \prod_{1\le j \le M} \vert 1 - e^{i(\theta_{j}-\theta)}\vert…

Classical Analysis and ODEs · Mathematics 2014-06-25 Philippe Rambour

We consider polynomials orthogonal on the unit circle with respect to the complex-valued measure $z^{\omega-1}\mathrm{d} z$, where $\omega\in\mathbb{R}\setminus\{0\}$. We derive their explicit form, a generating function and several…

Complex Variables · Mathematics 2023-08-14 María José Cantero , Arieh Iserles

This note presents new results for the squarefree value sets of quartic polynomials over the integers.

General Mathematics · Mathematics 2023-10-27 N. A. Carella

In this paper we introduce and discuss some classes of orthogonal polynomials in several non-commuting variables. The emphasis is on a non-commutative version of the orthogonal polynomials on the real line. We introduce recurrence equations…

Functional Analysis · Mathematics 2007-05-23 T. Constantinescu

We investigate the uniform asymptotic of some Sobolev orthogonal polynomials. Three term recurrence relation is given, moreover we give a recurrence relation between the so-called Sobolev orthogonal polynomials and Freud orthogonal…

Classical Analysis and ODEs · Mathematics 2015-02-24 Mohamed Bouali

This is an expository article on the Poisson binomial distribution. We review lesser known results and recent progress on this topic, including geometry of polynomials and distribution learning. We also provide examples to illustrate the…

Probability · Mathematics 2019-08-28 Wenpin Tang , Fengmin Tang

In this paper, we consider several special polynomials related to associated sequences of polynomials. Finally, we give some new and interesting identities of those polynomials arising from transfer formula for the associated sequences.

Number Theory · Mathematics 2013-02-01 Taekyun Kim , Dae San Kim

This work is a continuation of the recent study by the authors on approximation theory over the sphere and the ball. The main results define new Sobolev spaces on these domains and study polynomial approximations for functions in these…

Classical Analysis and ODEs · Mathematics 2010-11-15 Feng Dai , Yuan Xu
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