Resultados globales: 9 registros encontrados en 0.02 segundos.
Artículos, Encontrados 7 registros
Documentos de investigación, Encontrados 2 registros
Artículos Encontrados 7 registros  
1.
17 p, 370.8 KB On the existence and uniqueness of limit cycles in planar continuous piecewise linear systems without symmetry / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ordóñez, Manuel (Universidad de Sevilla. E.T.S. Ingeniería) ; Ponce, Enrique (Universidad de Sevilla. E.T.S. Ingeniería)
Some techniques to show the existence and uniqueness of limit cycles, typically stated for smooth vector fields, are extended to continuous piecewise-linear differential systems. New results are obtained for systems with three linearity zones without symmetry and having one equilibrium point in the central region. [...]
2013 - 10.1016/j.nonrwa.2013.02.004
Nonlinear Analysis: Real World Applications, Vol. 14 Núm. 5 (2013) , p. 2002-2012  
2.
8 p, 306.6 KB Three nested limit cycles in discontinuous piecewise linear differential systems with two zones / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (E.T.S. Ingenieros(Sevilla))
In this paper we study a planar piecewise linear differential system formed by two regions separated by a straight line so that one system has a real unstable focus and the other a virtual stable focus which coincides with the real one. [...]
2012
Dynamics of continuous, discrete and impulsive systems. Series B: Applications & Algorithms, Vol. 19 (2012) , p. 325-335  
3.
44 p, 528.6 KB Algebraic determination of limit cycles in 3-dimensional piecewise linear differential systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (Universidad de Sevilla. Departamento Matemática Aplicada II) ; Ros, Javier (Universidad de Sevilla. Departamento Matemática Aplicada II)
We study a one-parameter family of symmetric piecewise linear differential systems in R^3 which is relevant in control theory. The family, which has some intersection points with the adimensional family of Chua's circuits, exhibits more than one attractor even when the two matrices defining its dynamics in each zone are stable, in an apparent contradiction with the 3-dimensional Kalman's conjecture. [...]
2011 - 10.1016/j.na.2011.06.051
Nonlinear Analysis. Theory, Methods & Applications. An International Multidisciplinary Journal. Series A: Theory and Methods, Vol. 74 (2011) , p. 6712-6727  
4.
24 p, 428.2 KB Uniqueness and Non-uniqueness of Limit Cycles for Piecewise Linear Differential Systems with Three Zones and No Symmetry / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (Escuela Técnica Superior de Ingeniería (Sevilla). Departamento de Matemática Aplicada) ; Valls, Clàudia 1973- (Instituto Superior Técnico. Departamento de Matemática)
Some techniques for proving the existence and uniqueness of limit cycles for smooth differential systems are extended to continuous piecewise linear differential systems with two and three zones and no symmetry. [...]
2015 - 10.1007/s00332-015-9244-y
Journal of Nonlinear Science, Vol. 25 Núm. 4 (2015) , p. 861-887  
5.
10 p, 460.2 KB A simple solution to the Braga-Mello conjecture / Novaes, Douglas D. (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (Escuela Técnica Superior de Ingeniería (Sevilla). Departamento de Matemática Aplicada II,)
Recently Braga and Mello conjectured that for a given n N there is a piecewise linear system with two zones in the plane with exactly n limit cycles. In this paper, we prove a result from which the conjecture is an immediate consequence. [...]
2015 - 10.1142/S0218127415500091
International Journal of Bifurcation and Chaos in Applied Sciences and Engineering, Vol. 25 Núm. 1 (2015) , p. 1550009  
6.
33 p, 337.8 KB The discontinuous matching of two planar linear foci can have three nested crossing limit cycles / Freire, Emilio (Universidad de Sevilla. E.T.S. Ingeniería) ; Ponce, Enrique (Universidad de Sevilla. E.T.S. Ingeniería) ; Torres, Francisco (Universidad de Sevilla. E.T.S. Ingeniería)
The existence and stability of limit cycles in discontinuous piecewise linear systems obtained by the aggregation of two linear systems of focus type and having only one equilibrium point is considered. [...]
2014 - 10.5565/PUBLMAT_Extra14_13
Publicacions matemàtiques, Vol. Extra, Núm. (2014) , p. 221-253  
7.
18 p, 152.2 KB Hopf bifurcation from infinity for planar control systems / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (Universidad de Sevilla. E.T.S. Ingeniería)
Symmetric piecewise linear bi-dimensional systems are very common in control engineering. They constitute a class of non-differentiable vector fields for which classical Hopf bifurcation theorems are not applicable. [...]
1997
Publicacions matemàtiques, V. 41 n. 1 (1997) p. 181-198  

Documentos de investigación Encontrados 2 registros  
1.
23 p, 226.0 KB On the existence and uniqueness of limit cycles in Liénard differential equations allowing discontinuities / Llibre, Jaume (Universitat Autònoma de Barcelona. Departament de Matemàtiques) ; Ponce, Enrique (Universidad de Sevilla. E.T.S. Ingeniería) ; Torres, Francisco (Universidad de Sevilla. E.T.S. Ingeniería) ; Universitat Autònoma de Barcelona. Centre de Recerca Matemàtica
"Vegeu el resum a l'inici del document del fitxer adjunt".
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 749)  
2.
29 p, 359.8 KB Non-hyperbolic boundary equilibrium bifurcations in planar Filippov systems: a case study approach / Di Bernardo, Mario ; Pagano, Daniel J. ; Ponce, Enrique (Universidad de Sevilla. E.T.S. Ingeniería) ; Universitat Autònoma de Barcelona. Centre de Recerca Matemàtica
Boundary equilibrium bifurcations in piecewise smooth discontinuous systems are characterized by the collision of an equilibrium point with the discontinuity surface. Generically, these bifurcations are of codimension one, but there are scenarios where the phenomenon can be of higher codimension. [...]
Centre de Recerca Matemàtica 2007 (Prepublicacions del Centre de Recerca Matemàtica ; 748)  

Vea también: autores con nombres similares
1 Ponce, E.
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