Results 41 to 50 of about 2,835 (158)

New algorithm to solve nonlinear functional equations applying linearization then double discretization scheme (L.D.D)

open access: yesKuwait Journal of Science, 2023
Solving functional nonlinear equations leads to the question: which to begin with, linearization or discretization? Recent papers confirmed that linearizing then discretizing (L.D) is better.
Ilyes Sedka   +2 more
doaj   +1 more source

Generalized Newton's Method based on Graphical Derivatives [PDF]

open access: yes, 2010
This paper concerns developing a numerical method of the Newton type to solve systems of nonlinear equations described by nonsmooth continuous functions. We propose and justify a new generalized Newton algorithm based on graphical derivatives, which have
Hoheisel, T.   +3 more
core   +2 more sources

Existence and instability of steady states for a triangular cross-diffusion system: a computer-assisted proof

open access: yes, 2017
In this paper, we present and apply a computer-assisted method to study steady states of a triangular cross-diffusion system. Our approach consist in an a posteriori validation procedure, that is based on using a fxed point argument around a numerically ...
Breden, Maxime, Castelli, Roberto
core   +2 more sources

Newton-Kantorovich-Vietoris method

open access: yes, 2017
In this short work we consider nonlinear equation in Banach space $x = A(x)$. We combine classical Newton method with Vietoris method to propose new more general method. Under rather general conditions about the noise we investigate local convergence of the method.
openaire   +2 more sources

Improving Newton's method performance by parametrization: the case of Richards equation [PDF]

open access: yes, 2016
The nonlinear systems obtained by discretizing degenerate parabolic equations may be hard to solve, especially with Newton's method. In this paper, we apply to Richards equation a strategy that consists in defining a new primary unknown for the ...
Brenner, Konstantin, Cancès, Clément
core   +3 more sources

A semi-analytical model for deflection analysis of laminated plates with the Newton-Kantorovich-Quadrature method

open access: yesMaterials Research, 2013
A semi-analytical approach for analysis of laminated plates with general boundary conditions under a general distribution of loads is developed. The non-linear equations are solved by the Newton-Kantorovich-Quadrature (NKQ) method which is a combination ...
Rasoul Khandan   +4 more
doaj  

Semilocal analysis of equations with smooth operators

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1981
Recent work on semilocal analysis of nonlinear operator equations is informally reviewed. A refined version of the Kantorovich theorem for Newton's method, with new error bounds, is presented. Related topics are briefly surveyed.
George J. Miel
doaj   +1 more source

Inverse scattering problems and their applications in various field of technology

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Relevance. The practical application of subsurface radar methods for solving the problems of diagnostics and assessing the state of technical objects, flaw detection of multilayer structurally inhomogeneous structures, searching for subsurface ...
D.O. Batrakov
doaj   +1 more source

Rigorous Enclosures of Solutions of Neumann Boundary Value Problems

open access: yes, 2020
This paper is dedicated to the problem of isolating and validating zeros of non-linear two point boundary value problems. We present a method for such purpose based on the Newton-Kantorovich Theorem to rigorously enclose isolated zeros of two point ...
Gameiro, Marcio   +2 more
core  

A modified Newton-secant method for solving nonsmooth generalized equations

open access: yesMathematical Modelling and Analysis
In this paper, we study the solvability of nonsmooth generalized equations in Banach spaces using a modified Newton-secant method, by assuming a Hölder condition.
Vitaliano de Sousa Amaral   +3 more
doaj   +1 more source

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