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In this paper, we obtain new results on the critical points of a polynomial, these results are useful to the Sendov conjecture.

复变函数 · 数学 2013-01-03 Zaizhao Meng

The purpose of this note is to extend in a simple and unified way the known results on interlacing of zeros of paraorthogonal polynomials on the unit circle. These polynomials can be regarded as the characteristic polynomials of any matrix…

经典分析与常微分方程 · 数学 2017-06-20 K. Castillo , J. Petronilho

We investigate polynomials that satisfy simultaneous orthogonality conditions with respect to several measures on the unit circle. We generalize the direct and inverse Szeg\H{o} recurrence relations, identify the analogues of the Verblunsky…

经典分析与常微分方程 · 数学 2024-05-02 Marcus Vaktnäs , Rostyslav Kozhan

The purpose of this note is to give an affirmative answer to a conjecture appearing in [Integral Transforms Spec. Funct. 26 (2015) 90-95].

经典分析与常微分方程 · 数学 2019-10-03 K. Castillo , M. N. de Jesus , J. Petronilho

Orthogonal polynomials are of fundamental importance in many fields of mathematics and science, therefore the study of a particular family is always relevant. In this manuscript, we present a survey of some general results of the Hermite…

数值分析 · 数学 2020-02-18 Keith Y. Patarroyo

An open problem about two new families of orthogonal polynomials was posed by Alhaidari. Here we will identify one of them as Wilson polynomials. The other family seems to be new but we show that they are discrete orthogonal polynomials on…

经典分析与常微分方程 · 数学 2019-01-29 Walter Van Assche

We prove that there is a universal measure on the unit circle such that any probability measure on the unit disk is the limit distribution of some subsequence of the corresponding orthogonal polynomials. This follows from an extension of a…

谱理论 · 数学 2007-05-23 Barry Simon , Vilmos Totik

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…

数学物理 · 物理学 2008-05-20 Jinyuan Du , Zhihua Du

The notion of block divisibility naturally leads one to introduce unitary cyclotomic polynomials. We formulate some basic properties of unitary cyclotomic polynomials and study how they are connected with cyclotomic, inclusion-exclusion and…

数论 · 数学 2019-11-06 Pieter Moree , László Tóth

We prove that several results in different areas of number theory such as the divergent series, summation of arithmetic functions, uniform distribution modulo one and summation over prime numbers which are currently considered to be…

数论 · 数学 2011-03-30 Nilotpal Kanti Sinha , Marek Wolf

In this article, we give an account of some recent irreducibility testing criteria for polynomials having integer coefficients over the field of rational numbers.

数论 · 数学 2023-10-05 Sanjeev Kumar , Jitender Singh

We introduce different notions of polynomial convexity with bounds on degrees of polynomials in $\mathbb C^n$. We provide some examples in higher dimensions and show necessary and sufficient conditions for polynomial convexity with degree…

复变函数 · 数学 2024-03-22 Marko Slapar

We give some results and conjectures about recurrence relations for certain sequences of binomial sums.

组合数学 · 数学 2007-05-23 Johann Cigler

In this paper we get two new classes of regular sequences in the polynomial ring over the field of complex numbers.

交换代数 · 数学 2015-03-25 Ri-Xiang Chen

This is a survey recent works on topological extensions of the Tutte polynomial.

组合数学 · 数学 2017-08-29 Sergei Chmutov

Notions of the orthogonality and convolution orthogonality are explored with the use of the Kontorovich-Lebedev transform and its convolution. New classes of the corresponding orthogonal polynomials and functions are investigated. Integral…

经典分析与常微分方程 · 数学 2019-09-24 Semyon Yakubovich

By using the Szeg\H{o}'s transformation we deduce new relations between the recurrence coefficients for orthogonal polynomials on the real line and the Verblunsky parameters of orthogonal polynomials on the unit circle. Moreover, we study…

经典分析与常微分方程 · 数学 2015-05-11 K. Castillo , F. Marcellán , J. Rivero

We derive a useful result about the zeros of the $k$-polar polynomials on the unit circle; in particular we obtain a ring shaped region containing all the zeros of these polynomials. Some examples are presented.

复变函数 · 数学 2024-09-04 Roberto S. Costas-Santos , Abdelhamid Rehouma

This is a research announcement of the theory of orbifold quantum cohomology.

代数几何 · 数学 2007-05-23 Weimin Chen , Yongbin Ruan

In this paper we state some conjectures about q-Fibonacci polynomials which for q=1 reduce to well-known results about Fibonacci numbers and Fibonacci polynomials.

组合数学 · 数学 2008-05-06 Johann Cigler