Results 31 to 40 of about 641,705 (295)

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

Local convergence for composite Chebyshev-type methods

open access: yesCommunications in Advanced Mathematical Sciences, 2018
We replace Chebyshev's method for solving equations requiring the second derivative by a Chebyshev-type second derivative free method. The local convergence analysis of the new method is provided using hypotheses only on the first derivative in contrast ...
Santhosh George, İoannis K Argyros
doaj   +1 more source

A method with inertial extrapolation step for convex constrained monotone equations

open access: yesJournal of Inequalities and Applications, 2021
In recent times, various algorithms have been incorporated with the inertial extrapolation step to speed up the convergence of the sequence generated by these algorithms.
Abdulkarim Hassan Ibrahim   +3 more
doaj   +1 more source

StepDIRECT - A Derivative-Free Optimization Method for Stepwise Functions

open access: yes, 2022
In this paper, we propose the StepDIRECT algorithm for derivative-free optimization (DFO), in which the black-box objective function has a stepwise landscape. Our framework is based on the well-known DIRECT algorithm. By incorporating the local variability to explore the flatness, we provide a new criterion to select the potentially optimal hyper ...
Dzung T. Phan   +2 more
openaire   +2 more sources

Re-modified derivative-free iterative method for nonlinear monotone equations with convex constraints

open access: yesAin Shams Engineering Journal, 2021
In this note, we propose a modification as an alternative to remove the assumption of uniformly monotone as assumed in Aliyu et al. (2019). Numerical experiment shows that the modification improves the numerical performance of the method.
Abdulkarim Hassan Ibrahim, Poom Kumam
doaj   +1 more source

Wedge trust region methods for derivative free optimization [PDF]

open access: yesMathematical Programming, 2002
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marcelo Marazzi, Jorge Nocedal
openaire   +1 more source

An Efficient Class of Traub–Steffensen-Type Methods for Computing Multiple Zeros

open access: yesAxioms, 2019
Numerous higher-order methods with derivative evaluations are accessible in the literature for computing multiple zeros. However, higher-order methods without derivatives are very rare for multiple zeros.
Deepak Kumar   +2 more
doaj   +1 more source

Efficient Derivative-Free Class of Seventh Order Method for Non-differentiable Equations

open access: yesEuropean Journal of Mathematical Analysis, 2023
Many applications from a wide variety of disciplines in the natural sciences and also in engineering are reduced to solving of an equation or a system of equations in a correspondingly chosen abstract area.
oannis K. Argyros   +3 more
doaj   +1 more source

Some Iterative Methods Free from Derivatives and Their Basins of Attraction for Nonlinear Equations

open access: yesDiscrete Dynamics in Nature and Society, 2013
First, we make the Jain's derivative-free method optimal and subsequently increase its efficiency index from 1.442 to 1.587. Then, a novel three-step computational family of iterative schemes for solving single variable nonlinear equations is given.
Farahnaz Soleimani   +2 more
doaj   +1 more source

An Efficient Derivative Free One-Point Method with Memory for Solving Nonlinear Equations

open access: yesMathematics, 2019
We propose a derivative free one-point method with memory of order 1.84 for solving nonlinear equations. The formula requires only one function evaluation and, therefore, the efficiency index is also 1.84.
Janak Raj Sharma   +2 more
doaj   +1 more source

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