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Listar Artículos (Matemática Aplicada II) por autor "Freire Macías, Emilio"
Mostrando ítems 1-18 de 18
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An efficient and accurate linearization approach for hydraulically actuated multibody systems with holonomic and nonholonomic constraints
García-Agúndez Blanco, Alfonso; García Vallejo, Daniel; Freire Macías, Emilio; Pyrhönen, Lauri; Mikkola, Aki M. (Springer, 2023-03)Hydraulics is often used to actuate mechanisms in the applications of heavy machinery. In this work, a linearization ...
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Analytical and numerical stability analysis of a toroidal wheel with nonholonomic constraints
García-Agúndez Blanco, Alfonso; García Vallejo, Daniel; Freire Macías, Emilio (Springer, 2024-02)In this paper, a detailed and comprehensive linear stability analysis of a rolling toroidal wheel is performed. The wheel ...
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Bifurcación Silla-Nodo de Conos Invariantes en sistemas lineales a trozos Vía Bifurcación Foco-Centro-Ciclo Límite
Carmona Centeno, Victoriano; Freire Macías, Emilio; Ponce Núñez, Enrique; Ros Padilla, Francisco Javier (Sema, 2008)En este trabajo se considera la existencia de conos invariantes en sistemas dinámicos continuos tridimensionales lineales ...
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Bifurcation set for a disregarded Bogdanov-Takens unfolding: Application to 3D cubic memristor oscillators
Amador, Andrés; Freire Macías, Emilio; Ponce Núñez, Enrique (Springer Science and Business Media B.V., 2021)Motivated by the dynamical analysis of certain memristor-based oscillators, in this paper we derive the bifurcation set ...
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Bifurcations from a center at infinity in 3D piecewise linear systems with two zones
Freire Macías, Emilio; Ordóñez Sánchez, Manuel; Ponce Núñez, Enrique (Elsevier, 2020-01)We consider continuous piecewise linear systems in R3 with two zones under the assumption of having a linear center in the ...
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Canonical Discontinuous Planar Piecewise Linear Systems
Freire Macías, Emilio; Ponce Núñez, Enrique; Torres Peral, Francisco (Society of Industrial and Applied Mathematics, 2012)The family of Filippov systems constituted by planar discontinuous piecewise linear systems with two half-plane linearity ...
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Continuation of Gerver's supereight choreography
Muñoz Almaraz, Francisco Javier; Freire Macías, Emilio; Galán Vioque, Jorge Francisco; Vanderbauwhede, André (Real Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza, 2006)In [6] we developed a continuation technique for periodic orbits in reversible systems having some first integrals and ...
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Families of symmetric periodic orbits in the three body problem and the figure eight
Muñoz Almaraz, Francisco Javier; Galán Vioque, Jorge Francisco; Freire Macías, Emilio (Real Academia de Ciencias Exactas, Físicas, Químicas y Naturales de Zaragoza, 2004)In this paper we show a technique for the continuation of symmetric periodic orbits in systems with time-reversal symmetries. ...
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Hopf bifurcation at infinity in 3D Relay systems
Freire Macías, Emilio; Ponce Núñez, Enrique; Ros Padilla, Francisco Javier; Vela Felardo, Elisabet (Elsevier, 2023-02)A complete analysis of the limit cycle bifurcation from infinity in 3D Relay systems, which belong to the class of ...
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Hopf bifurcation at infinity in 3D symmetric piecewise linear systems. Application to a Bonhoeffer–van der Pol oscillator
Freire Macías, Emilio; Ponce Núñez, Enrique; Ros Padilla, Francisco Javier; Vela Felardo, Elisabet; Amador, A. (Elsevier, 2020-08)In this work, a Hopf bifurcation at infinity in three-dimensional symmetric continuous piecewise linear systems with three ...
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Hopf-Like Bifurcations in Planar Piecewise Linear Systems
Freire Macías, Emilio; Ponce Núñez, Enrique; Torres Peral, Francisco (Universitat Autònoma de Barcelona, Servei de Publicacions, 1997)Continuous planar piecewise linear systems with two linear zones are considered. Due to their low differentiability specific techniques of analysis must be developed. Several bifurcations giving rise to limit cycles are pointed out.
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Limit cycles from a monodromic infinity in planar piecewise linear systems
Freire Macías, Emilio; Ponce Núñez, Enrique; Torregrosa, Joan; Torres Peral, Francisco (Elsevier, 2021-04-15)Planar piecewise linear systems with two linearity zones separated by a straight line and with a periodic orbit at infinity ...
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On the Takens-Bogdanov Bifurcation in the Chua’s Equation
Algaba Durán, Antonio; Freire Macías, Emilio; Gamero Gutiérrez, Estanislao; Rodríguez Luis, Alejandro José (Institute of Electronics, Information and Communication Engineers, 1999)The analysis of the Takens-Bogdanov bifurcation of the equilibrium at the origin in the Chua’s equation with a cubic ...
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Phase diagram of the two-fluid Lipkin model: A "butterfly" catastrophe
García Ramos, José Enrique; Pérez Fernández, Pedro; Arias Carrasco, José Miguel; Freire Macías, Emilio (American Physical Society, 2016-03-31)Background: In the past few decades quantum phase transitions have been of great interest in nuclear physics. In this ...
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The dependent coordinates in the linearization of constrained multibody systems: Handling and elimination
García-Agúndez Blanco, Alfonso; García Vallejo, Daniel; Freire Macías, Emilio; Mikkola, Aki (Elsevier, 2024-04-15)In this paper, the handling of the dependent coordinates in the linearization of constrained multibody systems is clarified. ...
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The discontinuous matching of two planar linear foci can have three nested crossing limit cycles
Freire Macías, Emilio; Ponce Núñez, Enrique; Torres Peral, Francisco (Universitat Autònoma de Barcelona, Servei de Publicacions, 2014)The existence and stability of limit cycles in discontinuous piecewise linear systems obtained by the aggregation of two ...
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The Focus-Center-Limit Cycle Bifurcation in Symmetric 3D Piecewise Linear Systems
Freire Macías, Emilio; Ponce Núñez, Enrique; Ros Padilla, Francisco Javier (Society for Industrial and Applied Mathematics, 2005)The birth of limit cycles in 3D (three-dimensional) piecewise linear systems for the relevant case of symmetrical oscillators ...
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Variable-Angle Phase-Shifted PWM for Multilevel Three-Cell Cascaded H-bridge Converters
Márquez Alcaide, Abraham; León Galván, José Ignacio; Vázquez Pérez, Sergio; Portillo Guisado, Ramón Carlos; García Franquelo, Leopoldo; Freire Macías, Emilio; Kouro, Samir (Institute of Electrical and Electronics Engineers (IEEE), 2017)Multilevel cascaded H-bridge converters have become a mature technology for applications where high-power medium ac voltages ...