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In this paper, we study the theory of orthogonal trigonometric polynomials (OTP). We obtain asymptotics of OTP with positive and analytic weight functions by Riemann-Hilbert approach and find they have relations with orthogonal polynomials…

Mathematical Physics · Physics 2008-05-20 Jinyuan Du , Zhihua Du

We present an informal review of results on asymptotics of orthogonal polynomials, stressing their spectral aspects and similarity in two cases considered. They are polynomials orthonormal on a finite union of disjoint intervals with…

Mathematical Physics · Physics 2007-05-23 Leonid Pastur

The main goal of the paper is to prove convergence in norm and pointwise almost everywhere on $L^p$, $p\in (1,\infty)$, for certain multiparameter polynomial ergodic averages in the spirit of Dunford and Zygmund for continuous flows. We…

Dynamical Systems · Mathematics 2026-02-10 Dariusz Kosz , Bartosz Langowski , Mariusz Mirek , Paweł Plewa

We study expected values of the polynomials $P_N^{}(z)=\prod_{1\leq n\leq N}(X_n^2+z^2)$ whose $2N$ zeros $\{\pm i X_k\}^{}_{k=1,...,N}$ are generated by $N$ identically distributed multi-variate mean-zero normal random variables…

Mathematical Physics · Physics 2017-12-19 Michael K. -H. Kiessling

I give an example of a family of orthogonal polynomials on the unit circle with Verblunsky coefficients given by the skew-shift for which the associated measures are supported on the entire unit circle and almost-every Aleksandrov measure…

Spectral Theory · Mathematics 2011-11-18 Helge Krueger

In this paper we study the asymptotic analysis of the orthogonal trigonometric polynomials by the Riemann-Hilbert problem for the periodic analytic functions.

Complex Variables · Mathematics 2021-03-08 Huili Han , Hua Liu , Yufeng Wang

We study the Fourier coefficients of functions satisfying a certain version of Wright's circle method with finitely many major arcs. We show that the Jensen polynomials associated with such Fourier coefficients are asymptotically…

Number Theory · Mathematics 2023-07-24 Jashan Bal , Fern Haraldson , Joshua Males , Ian Thompson

We prove an asymptotic formula for the recurrence coefficients of orthogonal polynomials with orthogonality measure $\log \bigl(\frac{2}{1-x}\bigr) {\rm d}x$ on $(-1,1)$. The asymptotic formula confirms a special case of a conjecture by…

Classical Analysis and ODEs · Mathematics 2024-01-11 Percy Deift , Mateusz Piorkowski

The main result of this paper is a proof using real analysis of the monotonicity of the topological entropy for the family of quadratic maps, sometimes called Milnor's Monotonicity Conjecture. In contrast, the existing proofs rely in one…

Dynamical Systems · Mathematics 2020-10-13 José M. Amigó , Angel Giménez

Starting from the orthogonal polynomial expansion of a function $F$ corresponding to a finite positive Borel measure with infinite compact support, we study the asymptotic behavior of certain associated rational functions…

Complex Variables · Mathematics 2013-06-04 N. Bosuwan , G. López Lagomasino , E. B. Saff

We identify the Atkin polynomials in terms of associated Jacobi polynomials. Our identificationthen takes advantage of the theory of orthogonal polynomials and their asymptotics to establish many new properties of the Atkin polynomials.…

Number Theory · Mathematics 2016-01-20 Ahmad El-Guindy , Mourad E. H. Ismail

We analyse a family of mutually orthogonal polynomials on the unit ball with respect to an inner product which involves the outward normal derivatives on the sphere. Using their representation in terms of spherical harmonics, algebraic and…

Classical Analysis and ODEs · Mathematics 2015-12-04 Antonia M. Delgado , Lidia Fernández , Doron Lubinsky , Teresa E. Pérez , Miguel A. Piñar

We prove that the asymptotic entropy of large simple graphs, as a function of fixed edge and triangle densities, is nondifferentiable along a certain curve.

Combinatorics · Mathematics 2015-08-31 Charles Radin , Lorenzo Sadun

We deduce the asymptotic behaviour of a broad class of multiple q-orthogonal polynomials as their degree tends to infinity.

Classical Analysis and ODEs · Mathematics 2025-09-12 Tomas Lasic Latimer

In this paper we study the asymptotic behavior of the (skew) Macdonald and Jack symmetric polynomials as the number of variables grows to infinity. We characterize their limits in terms of certain variational problems. As an intermediate…

Probability · Mathematics 2024-09-10 Alice Guionnet , Jiaoyang Huang

Our goal is to find an asymptotic behavior as $n\to\infty$ of orthogonal polynomials $P_{n}(z)$ defined by the Jacobi recurrence coefficients $a_{n}, b_{n}$. We suppose that the off-diagonal coefficients $a_{n}$ grow so rapidly that the…

Classical Analysis and ODEs · Mathematics 2019-12-19 Dmitri Yafaev

We present a refinement of a known entropic inequality on the sphere, finding suitable conditions under which the uniform probability measure on the sphere behaves asymptomatically like the Gaussian measure on $\mathbb{R}^N$ with respect to…

Functional Analysis · Mathematics 2015-04-02 Amit Einav

We prove that the entropy function on the moduli space of real quadratic rational maps is not monotonic by exhibiting a continuum of disconnected level sets. This entropy behavior is in stark contrast with the case of polynomial maps, and…

Dynamical Systems · Mathematics 2020-08-20 Khashayar Filom , Kevin M. Pilgrim

We give an asymptotic upper bound as $n\to\infty$ for the entropy integral $$E_n(w)= -\int p_n^2(x)\log (p_n^2(x))w(x)dx,$$ where $p_n$ is the $n$th degree orthonormal polynomial with respect to a weight $w(x)$ on $[-1,1]$ which belongs to…

Classical Analysis and ODEs · Mathematics 2009-11-10 B. Beckermann , A. Martinez-Finkelshtein , E. A. Rakhmanov , F. Wielonsky

We provide a representation in terms of certain canonical functions for a sequence of polynomials orthogonal with respect to a weight that is strictly positive and analytic on the unit circle. These formulas yield a complete asymptotic…

Classical Analysis and ODEs · Mathematics 2007-05-23 A. Martinez-Finkelshtein , K. T. -R. McLaughlin , E. B. Saff
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