Results 41 to 50 of about 17,151,919 (277)

Derivation of the Optimal Solution for the Economic Production Quantity Model with Planned Shortages without Derivatives

Modelling, 2022
In this paper, we study a reformulation of the Economic Production Quantity (EPQ) problem. We study a more general version of the problem first and derive the conditions for an optimal solution, as well as the optimal solution itself, all without using ...
Cenk Çalışkan
doaj   +1 more source

Derivative-free methods in nonconvex optimization

Informatics and Control Problems
This paper discusses some new directions and results, obtained in joint work with Pham Duy Khanh (Ho Chi Minh City University of Education, Vietnam) and Dat Ba Tran (Rowan University, USA), for models of derivative-free optimization (DFO) with nonconvex ...
B. Mordukhovich
semanticscholar   +1 more source

Derivative-Free Families of With- and Without-Memory Iterative Methods for Solving Nonlinear Equations and Their Engineering Applications

Mathematics, 2023
In this paper, we propose a new fifth-order family of derivative-free iterative methods for solving nonlinear equations. Numerous iterative schemes found in the existing literature either exhibit divergence or fail to work when the function derivative is
Ekta Sharma, Sunil Panday, Shubham Kumar Mittal, Dan-Marian Joița, Lavinia Lorena Pruteanu, Lorentz Jäntschi   +5 more
doaj   +1 more source

A Family of Derivative-Free Conjugate Gradient Methods for Constrained Nonlinear Equations and Image Restoration

IEEE Access, 2020
In this paper, a derivative-free conjugate gradient method for solving nonlinear equations with convex constraints is proposed. The proposed method can be viewed as an extension of the three-term modified Polak-Ribiére-Polyak method (TTPRP) and the three-
A. Ibrahim, Poom Kumam, W. Kumam
semanticscholar   +1 more source

Ovarian Sex Cord Stromal Tumors in Children and Adolescents—The European Standard Clinical Practice Recommendations

Pediatric Blood &Cancer, EarlyView.
ABSTRACT As part of the European Cooperative Study Group for Paediatric Rare Tumours initiative, we developed standard clinical practice guidelines for ovarian sex cord stromal tumors, based on comprehensive national and international cohort analyses, literature review, and a final expert consensus conference.
Dominik T. Schneider, Kris‐Ann Schultz, Nora Schnitzler, Michael Abele, Tal Ben‐Ami, Ewa Bien, Gianni Bisogno, Ines B. Brecht, Maja Cesen, Andrea Ferrari, Michaela Kuhlen, Malgorzata A. Krawczyk, Ricardo Lopez‐Almaraz, Yves Reguerre, Calogero Virgone, Daniel Orbach   +15 more
wiley   +1 more source

Derivative free processes of high order for nondifferentiable equations in Banach spaces [PDF]

[EN] In this article, we consider two parametric classes of derivative free iterative methods of high order of convergence in Banach spaces. We study local and semilocal convergence results in Banach spaces for both families of iterative processes.
Villalba, Eva G. [0000-0003-1357-8410], Martínez, Eulalia [0000-0003-2869-4334], Argyros, Ioannis K., Hernández-Verón, null [0000-0001-5478-2958], Villalba, Eva G., Hernández-Verón, M. A., Martínez Molada, Eulalia   +6 more
core   +1 more source

Derivative-Free Spectral Projection Methods for Large-Scale Monotone Equations

Mathematics
We introduce two derivative-free spectral projection methods for large-scale monotone equations with convex constraints. The first, SOPP (Spectral Optimal-Perry Projection), selects its Perry parameter by minimizing the condition number of a symmetrized ...
Kabenge Hamiss, Mohammed Alshahrani, Mujahid N. Syed   +2 more
doaj   +1 more source

Evidence‐Informed Multidisciplinary Consensus Guidance for the Psychosocial Care of Adolescents With High‐Risk Cancer: Recommendations From the Italian Association of Pediatric Hematology and Oncology

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Adolescents with high‐risk cancer face complex developmental, psychosocial, and ethical challenges that extend beyond disease‐directed treatment. Although international recommendations exist for communication, psychosocial care, pediatric palliative care, survivorship, and shared decision‐making, these have largely evolved within ...
Johanna M. C. Blom, Dorella Scarponi, Giulia Zucchetti, Teresa Perillo, Maria Montanaro, Elisa Marconi, Chiara Rutigliano, Paolo Colavero, Paola Quarello, Marina Bertolotti, Monica Cellini, Carlo Clerici, Maurizio Mascarin, Francesca Bomben, Andrea Ferrari, the expert workgroup   +15 more
wiley   +1 more source

Analysis of Traub’s Method for Cubic Polynomials

Axioms
The dynamical analysis of Kurchatov’s scheme is extended to Traub’s method. The difference here is that Traub’s method requires two additional starting points. Therefore, the map is three-dimensional instead of 2-D.
Beny Neta
doaj   +1 more source

Derivative free iterative methods for nonlinear system

, 2015
[EN] In this work we introduce a new operator of divided differences that preserves the convergence order when it is used for approximating the Jacobian matrix in iterative method for solving nonlinear systems.
Hueso Pagoaga, José Luís, Teruel, Carles, Martínez Molada, Eulalia   +2 more
core   +1 more source