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Listar por palabra clave "Nonlinear systems"

Mostrando ítems 21-40 de 61

Control predictivo para seguimiento de sistemas no lineales. Aplicación a una planta piloto

Ferramosca, A.; Gruber, J.K.; Limón, D.; Camacho, E.F. (Universitat Politècnica de València, 2013-01-13)

[ES] Este artículo trata el problema del diseño de un controlador predictivo para seguimiento de referencias cambiantes, en el caso de sistemas no lineales. Los controladores predictivos proveen leyes de control adecuadas ...
Convergence and Stability of a New Parametric Class of Iterative Processes for Nonlinear Systems

Cordero Barbero, Alicia; Maimo, Javier G.; Rodríguez-Cabral, Antmel; Torregrosa Sánchez, Juan Ramón (MDPI AG, 2023-03)

[EN] In this manuscript, we carry out a study on the generalization of a known family of multipoint scalar iterative processes for approximating the solutions of nonlinear systems. The convergence analysis of the proposed ...
Convergence, efficiency and dynamics of new fourth and sixth order families of iterative methods for nonlinear system

Hueso Pagoaga, José Luís; Martínez Molada, Eulalia; Teruel, Carles (Elsevier, 2015-02)

[EN] In this work we present a new family of iterative methods for solving nonlinear systems that are optimal in the sense of Kung and Traub’s conjecture for the unidimensional case. We generalize this family by performing ...
Derivative free iterative methods for nonlinear system

Hueso Pagoaga, José Luís; Martínez Molada, Eulalia; Teruel, Carles (Elsevier, 2015-05-15)

[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. We obtain ...
Desenvolupament de nous mètodes per a la resolució d'equacions i sistemes d'equacions no lineals

Teruel Ferragud, Carles (Universitat Politècnica de València, 2016-01-11)

[EN] The necessity of solving nonlinear equations and systems arises naturally in the different areas of engineering and science when integral and differential equations are discretized. Nowadays, computers have become ...
Design and multidimensional extension of iterative methods for solving nonlinear problems

Artidiello, S.; Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón; Vassileva, M. P. (Elsevier, 2017)

[EN] In this paper, a three-step iterative method with sixth-order local convergence for approximating the solution of a nonlinear system is presented. From Ostrowski¿s scheme adding one step of Newton with ¿frozen¿ ...
Design, Convergence and Stability of a Fourth-Order Class of Iterative Methods for Solving Nonlinear Vectorial Problems

Cordero Barbero, Alicia; Jordan-Lluch, Cristina; Sanabria-Codesal, Esther; Torregrosa Sánchez, Juan Ramón (MDPI AG, 2021)

[EN] A new parametric family of iterative schemes for solving nonlinear systems is presented. Fourth-order convergence is demonstrated and its stability is analyzed as a function of the parameter values. This study allows ...
Dynamical study while searching equilibrium solutions in N-body problem

Budzko, Dzmitry; Hueso Pagoaga, José Luís; Martínez Molada, Eulalia; Teruel-Ferragud, Carles (Elsevier, 2016-05-01)

The theory of complex dynamics is usually applied to compare the global convergence properties of different iterative methods, by obtaining the attraction basins for simple polynomial equations in the complex domain. ...
Efficient high-order methods based on golden ratio for nonlinear system

Cordero Barbero, Alicia; Hueso Pagoaga, José Luís; Martínez Molada, Eulalia; Torregrosa Sánchez, Juan Ramón (Elsevier, 2011-01-01)

We derive new iterative methods with order of convergence four or higher, for solving nonlinear systems, by composing iteratively golden ratio methods with a modified Newton's method. We use different efficiency indices ...
Experimental analysis of passive intermodulation at waveguide flange bolted connections

Vicente, C.; Wolk, D.; Hartnagel, H.L.; Gimeno, B.; Boria Esbert, Vicente Enrique; Raboso, D. (Institute of Electrical and Electronics Engineers, 2007-05)

[EN] In this paper, the generation of passive intermodulation at rectangular waveguide flange bolted connections is investigated. An exhaustive series of tests has been performed in order to provide understanding on the ...
Generalized Conformable Fractional Newton-Type Method for Solving Nonlinear Systems

Candelario-Villalona, Giro Guillermo; Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón; Vassileva, María P. (Springer-Verlag, 2023-07)

[EN] In a recent paper, a conformable fractional Newton-type method was proposed for solving nonlinear equations. This method involves a lower computational cost compared to other fractional iterative methods. Indeed, the ...
Generalized high-order classes for solving nonlinear systems and their applications

Chicharro, Francisco I.; Cordero Barbero, Alicia; Garrido-Saez, Neus; Torregrosa Sánchez, Juan Ramón (MDPI AG, 2019-12)

[EN] A generalized high-order class for approximating the solution of nonlinear systems of equations is introduced. First, from a fourth-order iterative family for solving nonlinear equations, we propose an extension to ...
Generalizing Traub's method to a parametric iterative class for solving multidimensional nonlinear problems

Chicharro, Francisco I.; Cordero Barbero, Alicia; Garrido-Saez, Neus; Torregrosa Sánchez, Juan Ramón (John Wiley & Sons, 2023-05-11)

[EN] In this work, we modify the iterative structure of Traub's method to include a real parameter alpha$$ \alpha $$. A parametric family of iterative methods is obtained as a generalization of Traub, which is also a member ...
Highly efficient iterative algorithms for solving nonlinear systems with arbitrary order of convergence p+3, p>5

Cordero Barbero, Alicia; Jordan-Lluch, Cristina; Sanabria-Codesal, Esther; Torregrosa Sánchez, Juan Ramón (Elsevier, 2018)

[EN] It is known that the concept of optimality is not defined for multidimensional iterative methods for solving nonlinear systems of equations. However, usually optimal fourth order schemes (extended to the case of several ...
Increasing the order of convergence of iterative schemes for solving nonlinear systems

Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón; Penkova Vassileva, María (Elsevier, 2013-11)

[EN] A set of multistep iterative methods with increasing order of convergence is presented, for solving systems of nonlinear equations. One of the main advantages of these schemes is to achieve high order of convergence ...
Isonormal surfaces: A new tool for the multidimensional dynamical analysis of iterative methods for solving nonlinear systems

Capdevila-Brown, Raudys Rafael; Cordero Barbero, Alicia; Torregrosa Sánchez, Juan Ramón (John Wiley & Sons, 2022-04)

[EN] The dynamical behavior of the rational vectorial operator associated with a multidimensional iterative method on polynomial systems gives us interesting information about the stability of the iterative scheme. The ...
Linealizacion por realimentacion constructiva de sistemas mecanicos con grado de subactuacion 1 inestables con friccion

López-Martínez, M.; Acosta, J. A. (Universitat Politècnica de València, 2007-11-07)

[ES] En los últimos años se han desarrollado diversos métodos para controlar sistemas mecánicos subactuados. De hecho, dichos métodos no lineales han conseguido resolver problemas muy interesantes desde el punto de vista ...
Local convergence of a family of iterative methods for Hammerstein equations

Martínez Molada, Eulalia; Singh, Sukhjit; Hueso Pagoaga, José Luís; Gupta, D.K. (Springer-Verlag, 2016)

[EN] In this paper we give a local convergence result for a uniparametric family of iterative methods for nonlinear equations in Banach spaces. We assume boundedness conditions involving only the first Fr,chet derivative, ...
Memory in a new variant of King's family for solving nonlinear systems

Kansal, Munish; Cordero Barbero, Alicia; Bhalla, Sonia; Torregrosa Sánchez, Juan Ramón (MDPI AG, 2020-08)

[EN] In the recent literature, very few high-order Jacobian-free methods with memory for solving nonlinear systems appear. In this paper, we introduce a new variant of King's family with order four to solve nonlinear systems ...
Modelado y Control de Convertidores Conmutados Continua-Continua: Una perspectiva Tutorial

Martinez Salamero, L.; Cid Pastor, A.; El Aroudi, A.; Giral, R.; Calvente, Javier (Universitat Politècnica de València, 2009-10-08)

[ES] En este trabajo se presenta de forma tutorial los conceptos básicos de modelado y control de convertidores conmutados continua-continua. Tras definir la Electrónica de Potencia y su dominio de utilización, se presenta ...