Results 21 to 30 of about 264,051 (290)

Extended Comparison between Two Derivative-Free Methods of Order Six for Equations under the Same Conditions

open access: yesFractal and Fractional, 2022
Under the same conditions, we propose the extended comparison between two derivative free schemes of order six for addressing equations. The existing convergence technique used the standard Taylor series approach, which requires derivatives up to order ...
Samundra Regmi   +3 more
doaj   +1 more source

An Accelerated Method for Derivative-Free Smooth Stochastic Convex Optimization

open access: yes, 2022
We consider an unconstrained problem of minimizing a smooth convex function which is only available through noisy observations of its values, the noise consisting of two parts.
Dvurechensky, Pavel   +2 more
core   +1 more source

A second order convergent trial method for a free boundary problem in three dimensions [PDF]

open access: yes, 2015
The present article is concerned with the solution of a generalized Bernoulli free boundary problem in three spatial dimensions. We parametrize the free boundary under consideration over the sphere and apply a trial method which updates the free boundary
Harbrecht, Helmut, Bugeanu, Monica
core   +1 more source

An optimal eighth order derivative free multiple root finding numerical method and applications to chemistry [PDF]

open access: yes, 2023
[EN] In this paper, we present an optimal eighth order derivative-free family of methods for multiple roots which is based on the first order divided difference and weight functions.
Fiza Zafar   +3 more
core   +1 more source

Derivative-Free Optimal Iterative Methods

open access: yesComputational Methods in Applied Mathematics, 2010
AbstractIn this study, we develop an optimal family of derivative-free iterative methods. Convergence analysis shows that the methods are fourth order convergent, which is also verified numerically. The methods require three functional evaluations during each iteration. Though the methods are independent of derivatives, computa-
Sanjay Kumar Khattri, Ravi P. Agarwal
openaire   +2 more sources

A Modified Spectral Gradient Projection Method for Solving Non-Linear Monotone Equations With Convex Constraints and Its Application

open access: yesIEEE Access, 2020
In this paper, we propose a derivative free algorithm for solving non-linear monotone equations with convex constraints. The proposed algorithm combines the method of spectral gradient and the projection method.
Li Zheng, Lei Yang, Yong Liang
doaj   +1 more source

Inertial Derivative-Free Projection Method for Nonlinear Monotone Operator Equations With Convex Constraints

open access: yesIEEE Access, 2021
In this paper, we propose an inertial derivative-free projection method for solving convex constrained nonlinear monotone operator equations (CNME). The method incorporates the inertial step with an existing method called derivative-free projection (DFPI)
Auwal Bala Abubakar   +2 more
doaj   +1 more source

Second-derivative-free variant of the Chebyshev method for nonlinear equations. [PDF]

open access: yes, 2000
In this paper, we introduce a numerical method for nonlinear equations, based on the Chebyshev third-order method, in which the second-derivative operator is replaced by a finite difference between first derivatives.
Hernández, M.A. [0000-0001-5478-2958]
core   +1 more source

Optimal One-Point Iterative Function Free from Derivatives for Multiple Roots

open access: yesMathematics, 2020
We suggest a derivative-free optimal method of second order which is a new version of a modification of Newton’s method for achieving the multiple zeros of nonlinear single variable functions.
Deepak Kumar   +2 more
doaj   +1 more source

Derivative free iterative methods for nonlinear systems

open access: yesApplied Mathematics and Computation, 2015
This research was supported by Ministerio de Ciencia y Tecnologia MTM2011-28636-C02-02 and by Vicerrectorado de Investigacion, Universitat Politecnica de Valencia PAID-SP-2012-0498 and PAID-SP-2012-0474.
Hueso Pagoaga, José Luís   +2 more
openaire   +3 more sources

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