Results 21 to 30 of about 14,414,832 (247)

Derivative free Levenberg-Marquardt method for solving fuzzy nonlinear equation

open access: yes, 2021
In this paper, we present a derivative-free computational method for solving fuzzy nonlinear equation. Derivative-free technique avoids computing the derivative by generating an estimate to the derivative.
I., Sumiati   +7 more
core   +1 more source

A derivative-free Gauss–Newton method [PDF]

open access: yes, 2019
We present DFO-GN, a derivative-free version of the Gauss–Newton method for solving nonlinear least-squares problems. DFO-GN uses linear interpolation of residual values to build a quadratic model of the objective, which is then used within a typical ...
Lindon Roberts   +5 more
core   +1 more source

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

Fractional variational problems with the Riesz-Caputo derivative [PDF]

open access: yes, 2012
In this paper we investigate optimality conditions for fractional variational problems, with a Lagrangian depending on the Riesz-Caputo derivative. First we prove a generalized Euler-Lagrange equation for the case when the interval of integration of the ...
Almeida, R.   +2 more
core   +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

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

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 derivative-free root-finding algorithm using exponential method and its implementation

open access: yesBMC Research Notes, 2023
Objective In this paper, we develop a new root-finding algorithm to solve the given non-linear equations. The proposed root-finding algorithm is based on the exponential method. This algorithm is derivative-free and converges fast.
Srinivasarao Thota   +3 more
doaj   +1 more source

Hybridization of Multi-Objective Deterministic Particle Swarm with Derivative-Free Local Searches

open access: yesMathematics, 2020
The paper presents a multi-objective derivative-free and deterministic global/local hybrid algorithm for the efficient and effective solution of simulation-based design optimization (SBDO) problems.
Riccardo Pellegrini   +5 more
doaj   +1 more source

Efficient Fourth-Order Scheme for Multiple Zeros: Applications and Convergence Analysis in Real-Life and Academic Problems

open access: yesMathematics, 2023
High-order iterative techniques without derivatives for multiple roots have wide-ranging applications in the following: optimization tasks, where the objective function lacks explicit derivatives or is computationally expensive to evaluate; engineering ...
Sunil Kumar   +2 more
doaj   +1 more source

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