Results 1 to 10 of about 302,926 (303)

Brauer-Type Inclusion Sets of Zeros for Chebyshev Polynomial

open access: yesMathematics, 2019
The generalized polynomials such as Chebyshev polynomial and Hermite polynomial are widely used in interpolations and numerical fittings and so on. Therefore, it is significant to study inclusion regions of the zeros for generalized polynomials.
Xiao Feng, Yaotang Li
doaj   +2 more sources

Unified Convergence Analysis of Chebyshev–Halley Methods for Multiple Polynomial Zeros

open access: yesMathematics, 2022
In this paper, we establish two local convergence theorems that provide initial conditions and error estimates to guarantee the Q-convergence of an extended version of Chebyshev–Halley family of iterative methods for multiple polynomial zeros due to ...
Stoil I. Ivanov
doaj   +1 more source

Some inequalities for the polar derivative of some classes of polynomials [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2019
In this paper, we investigate an upper bound of the polar derivative of a polynomial of degree where zeros are in and the remaining zeros are outside where .
Nuttapong Arunrat   +1 more
doaj   +1 more source

Location of zeros of Wiener and distance polynomials. [PDF]

open access: yesPLoS ONE, 2012
The geometry of polynomials explores geometrical relationships between the zeros and the coefficients of a polynomial. A classical problem in this theory is to locate the zeros of a given polynomial by determining disks in the complex plane in which all ...
Matthias Dehmer, Aleksandar Ilić
doaj   +1 more source

A New Ehrlich-Type Sixth-Order Simultaneous Method for Polynomial Complex Zeros

open access: yesVetor, 2023
This paper presents a new iterative method for the simultaneous determination of simple polynomial zeros. The proposed method is obtained from the combination of the third-order Ehrlich iteration with an iterative correction derived from Li's fourth ...
Luiz Guerreiro Lopes   +1 more
doaj   +1 more source

Upper Bound for Lebesgue Constant of Bivariate Lagrange Interpolation Polynomial on the Second Kind Chebyshev Points

open access: yesJournal of Mathematics, 2022
In the paper, we study the upper bound estimation of the Lebesgue constant of the bivariate Lagrange interpolation polynomial based on the common zeros of product Chebyshev polynomials of the second kind on the square −1,12. And, we prove that the growth
Juan Liu, Laiyi Zhu
doaj   +1 more source

Configuration of Zeros of Isochronous Vector Fields of Degree 5

open access: yesComplexity, 2021
In this paper, we give the algebraic conditions that a configuration of 5 points in the plane must satisfy in order to be the configuration of zeros of a polynomial isochronous vector field.
Julio Cesar Avila   +2 more
doaj   +1 more source

A condition for associativity of univariate resultants

open access: yesExamples and Counterexamples, 2023
We provide a condition on the occurrences of variables in polynomials and show that it ensures associativity of univariate resultants in non-trivial cases.
D.A. Wolfram
doaj   +1 more source

Generalizations of some Enestrom-Kakeya type results

open access: yesBibechana, 2015
In this paper we give interesting generalizations of some well-known Enestrom-Kakeya type results on the location of zeros of a complex polynomial under less restrictive conditions on the coefficients of the polynomial. BIBECHANA 13 (2016) 1-8  
MH Gulzar, AW Manzoor
doaj   +3 more sources

On the determination of the number of positive and negative polynomial zeros and their isolation

open access: yesOpen Mathematics, 2020
A novel method with two variations is proposed with which the number of positive and negative zeros of a polynomial with real coefficients and degree n can be restricted with significantly better determinacy than that provided by the Descartes rule of ...
Prodanov Emil M.
doaj   +1 more source

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