Ara es mostren els items 1-20 de 30

  • A sufficient condition for Lipschitz stability of controlled Invariant subspaces 

    Peña Carrera, Marta; Puerta Sales, Ferran; Puerta Coll, Xavier (2009-12)
    Article
    Accés restringit per política de l'editorial
    Given a pair of matrices (A,B) we study the Lipschitz stability of its controlled invariant subspaces. A sufficient condition is derived from the geometry of the set formed by the quadruples (A,B, F, S) where S is ...
  • Bifurcation diagram for saddle/source bimodal linear dynamical systems 

    Peña Carrera, Marta; Ferrer Llop, Josep; Susín Sánchez, Antonio (2016)
    Article
    Accés obert
    We continue the study of the structural stability and the bifurcations of planar bimodal linear dynamical systems (BLDS) (that is, systems consisting of two linear dynamics acting on each side of a straight line, assuming ...
  • Bifurcation diagram of Saddle/Spiral bimodal linear systems 

    Ferrer Llop, Josep; Peña Carrera, Marta; Susín Sánchez, Antonio (2017-01-01)
    Article
    Accés restringit per política de l'editorial
    We complete the study of the bifurcations of saddle/spiral bimodal linear systems, depending on the respective traces T and t: one 2-codimensional bifurcation; four kinds of 1-codimensional bifurcations. We stratify the ...
  • Controllability of continuous bimodal linear systems 

    Ferrer Llop, Josep; Pacha Andújar, Juan Ramón; Peña Carrera, Marta (2013-05-01)
    Article
    Accés obert
    We consider bimodal linear systems consisting of two linear dynamics acting on each side of a given hyperplane, assuming continuity along the separating hyperplane. We prove that the study of controllability can be reduced ...
  • Deformaciones miniversales de parejas de tensores de segundo orden 

    Clotet Juan, Josep; Magret Planas, Maria dels Dolors; Peña Carrera, Marta (Universidad de Sevilla, 2007-09)
    Text en actes de congrés
    Accés obert
    Consideramos en el espacio de parejas de tensores tension y deformacion la relacion de equivalencia que se corresponde con cambios de base ortonormales. Identificandolas con parejas de matrices cuadradas, podemos utilizar ...
  • Differentiable families of planar bimodal linear control systems 

    Ferrer Llop, Josep; Magret Planas, Maria dels Dolors; Peña Carrera, Marta (2014-06)
    Article
    Accés obert
    We consider bimodal linear control systems consisting of two subsystems acting on each side of a given hyperplane, assuming continuity along it. For a differentiable family of planar bimodal linear control systems, we ...
  • Differentiable families of stabilizers for planar bimodal linear control systems 

    Ferrer Llop, Josep; Magret Planas, Maria dels Dolors; Peña Carrera, Marta (American Institute of Physics (AIP), 2013)
    Text en actes de congrés
    Accés obert
    We consider bimodal linear control systems consisting of two subsystems acting on each side of a given hyperplane, assuming continuity along the separating hyperplane. For a differentiable family of controllable planar ...
  • Dimension of the orbit of marked subspaces 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2004)
    Article
    Accés obert
    Given a nilpotent endomorphism, we consider the manifold of invariant subspaces having a fixed Segre characteristic. In [Linear Algebra Appl., 332–334 (2001) 569], the implicit form of a miniversal deformation of an ...
  • Geometric structure of single/combined equivalence classes of a controllable pair 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2011-11)
    Article
    Accés obert
    Given a pair of matrices representing a controllable linear system, its equivalence classes by the single or combined action of feedbacks, change of state and input variables, as well as their intersection are studied. ...
  • Geometric structure of the equivalence classes of a controllable pair 

    Peña Carrera, Marta; Compta Creus, Albert; Ferrer Llop, Josep (2010)
    Comunicació de congrés
    Accés obert
    Given a pair of matrices representing a controllable linear system, we study its equivalence classes by the single or combined action of feedbacks and change of state and input variables, as well as their intersections. ...
  • Learning automation to teach mathematics 

    Ferrer Llop, Josep; Peña Carrera, Marta; Ortiz Caraballo, Carmen (InTech, 2012-07)
    Capítol de llibre
    Accés obert
  • Learning engineering to teach mathematics 

    Ferrer Llop, Josep; Peña Carrera, Marta; Ortiz, Carmen (2010)
    Text en actes de congrés
    Accés obert
    The Bologna process is a good opportunity to bring together first-year mathematics courses of engineering degrees and technology courses offered in subsequent years. In fact, the Faculty Council has decided that 20% ...
  • Local differentiable pole assignment 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (Taylor & Francis, 2010)
    Article
    Accés obert
    Given a general local differentiable family of pairs of matrices, we obtain a local differentiable family of feedbacks solving the pole assignment problem, that is to say, shifting the spectrum into a prefixed one. We ...
  • Miniversal Deformations of Bimodal Picewise Linear Systems 

    Ferrer Llop, Josep; Magret Planas, Maria dels Dolors; Pacha Andújar, Juan Ramón; Peña Carrera, Marta (Servicio de publicaciones de la UPV, 2010)
    Comunicació de congrés
    Accés obert
    Bimodal linear systems are those consisting of two linear systems on each side of a given hyperplane, having continuous dynamics along that hyperplane. In this work, we focus on the derivation of (orthogonal) miniversal ...
  • Miniversal deformations of observable marked matrices 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2014)
    Article
    Accés restringit per política de l'editorial
    Given the set of vertical pairs of matrices ${\cal M}\subset M_{m,n}(\mathbb C)\times M_n(\mathbb C)$ keeping the subspace $\mathbb C^d\times\{0\}\subset\mathbb C^n$ invariant,we compute miniversal deformations of a given ...
  • Miniversal deformations of observable marked matrices 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2012)
    Report de recerca
    Accés obert
    Given the set of vertical pairs of matrices M¿ Mm,n(C)×Mn(C) keeping the subspace Cd×{0} ¿ Cn invariant, we compute miniversal deformations of a given pair when it is observable and the subspace Cd × {0} is marked. ...
  • On the effect of friend feedbacks 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2011)
    Article
    Accés restringit per política de l'editorial
    Given S an (A,B)-invariant subspace, we prove that the set of friend feedbacks is a linear variety, which can be considered as the direct sum of the feedbacks of the restriction to S and the co-restriction to S ⊥. In ...
  • On the effect of friend feedbacks 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2009)
    Article
    Accés obert
    Given S an (A;B)-invariant subspace, we prove that the set of friend feedbacks is a (nm¡md+dq)-dimensional linear variety, which can be considered as the direct sum of the feedbacks of the restriction to S and the ...
  • Output regulation problem for differentiable families of linear systems 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2010)
    Article
    Accés obert
    Given a family of linear systems depending on a parameter varying in a differentiable manifold, we obtain sufficient conditions for the existence of a (global or local) differentiable family of controllers solving the ...
  • Output regulation problem for differentiable families of linear systems 

    Compta Creus, Albert; Ferrer Llop, Josep; Peña Carrera, Marta (2009)
    Article
    Accés obert
    Given a family of linear systems depending on a parameter varying in a differentiable manifold, we obtain sufficient conditions for the existence of a (global or local) differentiable family of controllers solving the ...