Results 11 to 20 of about 4,897,555 (276)

Discontinuous Galerkin methods for nonlinear scalar hyperbolic conservation laws: divided difference estimates and accuracy enhancement. [PDF]

open access: yesNumer Math (Heidelb), 2017
In this paper, an analysis of the accuracy-enhancement for the discontinuous Galerkin (DG) method applied to one-dimensional scalar nonlinear hyperbolic conservation laws is carried out.
Meng X, Ryan JK.
europepmc   +2 more sources

Linear Partial Divided-Difference Equation Satisfied by Multivariate Orthogonal Polynomials on Quadratic Lattices [PDF]

open access: green, 2017
In this paper, a fourth-order partial divided-difference equation on quadratic lattices with polynomial coefficients satisfied by bivariate Racah polynomials is presented.
Daniel Duviol Tcheutia   +4 more
openalex   +3 more sources

Nevanlinna theory of the Askey–Wilson divided difference operator [PDF]

open access: green, 2018
This paper establishes a version of Nevanlinna theory based on Askey-Wilson divided difference operator for meromorphic functions of finite logarithmic order in the complex plane $\mathbb{C}$.
Yik‐Man Chiang, Shaoji Feng
openalex   +4 more sources

Enhancing Equation Solving: Extending the Applicability of Steffensen-Type Methods

open access: yesMathematics, 2023
Local convergence analysis is mostly carried out using the Taylor series expansion approach, which requires the utilization of high-order derivatives, not iterative methods.
Ramandeep Behl   +2 more
doaj   +1 more source

Local convergence of the Gauss-Newton-Kurchatov method under generalized Lipschitz conditions

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2021
We investigate the local convergence of the Gauss-Newton-Kurchatov method for solving nonlinear least squares problems. This method is a combination of Gauss-Newton and Kurchatov methods and it is used for problems with the decomposition of the operator.
S.M. Shakhno, H.P. Yarmola
doaj   +1 more source

Three-Step Derivative-Free Method of Order Six

open access: yesFoundations, 2023
Derivative-free iterative methods are useful to approximate the numerical solutions when the given function lacks explicit derivative information or when the derivatives are too expensive to compute.
Sunil Kumar   +3 more
doaj   +1 more source

Value distribution of meromorphic solutions of certain difference Painlevé III equations

open access: yesAdvances in Difference Equations, 2018
In this paper, we investigate the difference Painlevé III equations w(z+1)w(z−1)(w(z)−1)2=w2(z)−λw(z)+μ $w(z+1)w(z-1)(w(z)-1)^{2}=w^{2}(z)-\lambda w(z)+\mu$ ( λμ≠0 $\lambda\mu\neq 0$) and w(z+1)w(z−1)(w(z)−1)2=w2(z) $w(z+1)w(z-1)(w(z)-1)^{2}=w^{2}(z ...
Yunfei Du   +3 more
doaj   +1 more source

Semi-Local Convergence of Two Derivative-Free Methods of Order Six for Solving Equations under the Same Conditions

open access: yesFoundations, 2022
We propose the semi-local convergence of two derivative-free, competing methods of order six to address non-linear equations. The sufficient convergence criteria are the same, making a direct comparison between them possible.
Ioannis K. Argyros   +3 more
doaj   +1 more source

On Some Properties of the Operator, Defined on Class of Analytic in the Half-Plane Functions

open access: yesNonlinear Analysis, 2004
In present paper the properties of the operator introduced by authors, which is defined on special class of n-normalized analytic in the half-plane functions are investigated. This operator is closely related with automorphism of a half-plane.
J. Kirjackis, E. G. Kiriyatzkii
doaj   +1 more source

Differential Evolution Optimized a Second-Order Divided Difference Particle Filter

open access: yesJournal of Electrical and Computer Engineering, 2020
In order to improve the estimation accuracy of particle filter algorithm in a nonlinear system state estimation problem, a new algorithm based on the second-order divided difference filter to generate the proposed distribution and the differential ...
Ting Cao   +3 more
doaj   +1 more source

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