Results 21 to 30 of about 111,867 (281)

Zeros of Fekete polynomials [PDF]

open access: yes, 1999
The authors study the distribution of zeros of the Fekete polynomial f_p(t) (defined for p prime) as p -> infinity. They show that asymptotically a constant fraction of the zeros lie on the unit circle, and they investigate the constant of ...
Conrey, J. Brian   +3 more
core   +3 more sources

Real zeros of SONC polynomials [PDF]

open access: yesJournal of Pure and Applied Algebra, 2021
Minor revision; final version; to appear in Journal of Pure and Applied Algebra; 27 pages, 3 figures, 4 ...
openaire   +2 more sources

An Algebraic Criterion of Zero Solutions of Some Dynamic Systems

open access: yesAbstract and Applied Analysis, 2012
We establish some algebraic results on the zeros of some exponential polynomials and a real coefficient polynomial. Based on the basic theorem, we develop a decomposition technique to investigate the stability of two coupled systems and their discrete ...
Ying Wang, Baodong Zheng, Chunrui Zhang
doaj   +1 more source

A note on the structure of the zeros of a polynomial and Sendov's conjecture

open access: yesCubo, 2023
In this note we prove a result that highlights an interesting connection between the structure of the zeros of a polynomial \(p(z)\) and Sendov's conjecture.
G. M. Sofi, W. M. Shah
doaj   +1 more source

Annular Bounds for the Zeros of a Polynomial

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2018
The problem of obtaining the smallest possible region containing all the zeros of a polynomial has been attracting more and more attention recently, and in this paper, we obtain several results providing the annular regions that contain all the zeros of ...
Le Gao, N. K. Govil
doaj   +1 more source

Zeros of unilateral quaternionic polynomials [PDF]

open access: yesThe Electronic Journal of Linear Algebra, 2006
The purpose of this paper is to show how the problem of finding the zeros of unilateral n-order quaternionic polynomials can be solved by determining the eigen-vectors of the corresponding companion matrix. This approach, probably superfluous in the case of quadratic equations for which a closed formula can be given, becomes truly useful for ...
De Leo, Stefano   +2 more
openaire   +2 more sources

Bounds for the zeros of unilateral octonionic polynomials

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2021
In the present work it is proved that the zeros of a unilateral octonionic polynomial belong to the conjugacy classes of the latent roots of an appropriate lambda-matrix.
Serôdio Rogério   +2 more
doaj   +1 more source

Unit circle MVDR beamformer

open access: yes, 2016
The array polynomial is the z-transform of the array weights for a narrowband planewave beamformer using a uniform linear array (ULA). Evaluating the array polynomial on the unit circle in the complex plane yields the beampattern.
Buck, John R, Tuladhar, Saurav R
core   +1 more source

Improved Cauchy radius for scalar and matrix polynomials [PDF]

open access: yes, 2017
We improve the Cauchy radius of both scalar and matrix polynomials, which is an upper bound on the moduli of the zeros and eigenvalues, respectively, by using appropriate polynomial multipliers.Comment: 12 ...
Berrington, Janet   +12 more
core   +4 more sources

A Maple Implementation for Deterministically Certifying Isolated Simple Zeros of Over-Determined Polynomial Systems with Interval Arithmetic and Its Applications

open access: yesAppliedMath
This paper presents a Maple implementation of an interval verification method for identifying isolated simple zeros in square polynomial systems. Compared to the known MATLAB (R2019b) implementation, the Maple-based approach achieves significantly higher
Xiaojie Dou, Jin-San Cheng, Junyi Wen
doaj   +1 more source

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