Now showing items 1-14 of 14

  • Analysis of behavior of the eigenvalues and eigenvectors of singular linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia (2012)
    Article
    Open Access
    Let E(p)x˙ = A(p)x + B(p)u be a family of singular linear systems smoothly dependent on a vector of real parameters p = (p1, . . . , pn). In this work we construct versal deformations of the given differentiable family under ...
  • Controllability of time-invariant singular linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia; Díaz, Adolfo (World Scientific, 2010)
    Part of book or chapter of book
    Restricted access - publisher's policy
    We consider triples of matrices (E; A;B), representing singular linear time invariant systems in the form Ex_ (t) = Ax(t)+Bu(t), with E;A 2 Mn(C) and B 2 Mn£m(C), under proportional and derivative feedback. Structural ...
  • Controllability of time-invariant singular linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia (2009-10-31)
    Conference report
    Open Access
    We consider triples of matrices (E; A;B), representing singular linear time invariant systems in the form Ex_ (t) = Ax(t) + Bu(t), with E;A 2 Mn(C) and B 2 Mn£m(C), under proportional and derivative feedback. Structural ...
  • Códigos de convolución desde el punto de vista de teoría de control. Análisis de la observabilidad 

    García Planas, María Isabel; Tarragona Romero, Sonia; Um, Laurence Emilie (2014-04-30)
    Article
    Open Access
    En este trabajo se realiza un estudio detallado de la estructura algebraica de los códigos de convolución empleando técnicas de la teoría de sistemas lineales. La conexión entre estos conceptos ayuda a comprender ...
  • Eigenstructure of of singular systems. Perturbation analysis of simple eigenvalues 

    García Planas, María Isabel; Tarragona Romero, Sonia (2014-01)
    Article
    Open Access
    The problem to study small perturbations of simple eigenvalues with a change of parameters is of general interest in applied mathematics. After to introduce a systematic way to know if an eigenvalue of a singular system ...
  • Functional output-controllability of time-invariant singular linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia (Springer, 2014-10-11)
    Article
    Open Access
    In the space of finite-dimensional singular linear continuous-time-invariant systems described in the form \begin{equation}\label{eq1}\left . \begin{array}{rl} E \dot x(t)&= Ax(t)+Bu(t)\\ y(t)&=Cx(t)\end{array}{\kern ...
  • Output observability of generalized linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia (2011)
    Article
    Restricted access - publisher's policy
    In this paper we consider finite-dimensional generalized linear discrete-time-invariant systems in the form Ex˙ (k+1) = Ax(k)+Bu(k), y(k) = Cx(k) where E,A 2 M = Mn(C), B 2 Mn×m(C), C 2 Mp×n(C), describ- ing convolutional ...
  • Output observability of time-invariant singular linear systems 

    García Planas, María Isabel; Tarragona Romero, Sonia (IPACS Electrinic Library, 2011)
    Part of book or chapter of book
    Open Access
    In this paper finite-dimensional singular linear discrete-time-invariant systems in the form Ex(k + 1) = Ax(k) + Bu(k), y(k) = Cx(k) where E;A 2 M = Mn(C), B 2 Mn£m(C), C 2 Mp£n(C), describing convolutional codes are ...
  • Perturbación de los valores propios simples de matrices de polinomios dependientes diferenciablemente de parámetros 

    García Planas, María Isabel; Tarragona Romero, Sonia (Servicio de publicaciones de la UPV, 2010)
    Conference lecture
    Open Access
    Sea P(¸) = Pk i=0 ¸iAi(p) una familia de matrices polinomiales mónica dependi- ente diferenciablemente de parámetros reales. Las matrices polinomiales aparecen de fPorma natural asociadas a los sistemas de ecuaciones ...
  • Perturbación de los valores propios simples de matrices de polinomios dependientes diferenciablemente de parámetros 

    García Planas, María Isabel; Tarragona Romero, Sonia (Editorial de la Universitat Politècnica de València (UPV), 2010)
    Conference report
    Open Access
    Sea P(¸) = Pk i=0 ¸iAi(p) una familia de matrices polinomiales m¶onica dependi- ente diferenciablemente de par¶ametros reales. Las matrices polinomiales aparecen de fPorma natural asociadas a los sistemas de ecuaciones ...
  • Perturbation analysis of eigenvalues of polynomial matrices smoothly depending on parameters 

    García Planas, María Isabel; Tarragona Romero, Sonia (Wseas Press, 2011-07)
    Part of book or chapter of book
    Open Access
    Let P(¸) = Pk i=0 ¸iAi(p) be a family of monic polyomial matrices smoothly dependent on a vector of real parameters p = (p1; : : : ; pn). In this work we study behavior of a multiple eigenvalue of the monic polynomial family P(¸).
  • Perturbation analysis of simple eigenvalues of singular linear systems 

    Tarragona Romero, Sonia; García Planas, María Isabel (2013)
    Conference report
    Open Access
    In this work a study of the behavior of a simple eigenvalue of singular linear system family E ( p )_ x = A ( p ) x + B ( p ) u , y = C ( p ) x smoothly dependent on a vector of real parameters p = ...
  • Versal deformations in orbit spaces 

    Puerta Sales, Ferran; Puerta Coll, Xavier; Tarragona Romero, Sonia (2003)
    Article
    Open Access
    Given an orbit space $M/\Gamma$ and an equivalence relation defined in it by means of the action of a group $G$, we obtain a miniversal deformation of an orbit through a miniversal deformation in $M$ with regard to a ...
  • Versal deformations in orbit spaces of matrices 

    Puerta Sales, Ferran; Puerta Coll, Xavier; Tarragona Romero, Sonia (2002)
    Article
    Open Access
    Given an orbit space of matrices $M/\Gamma$ and an equivalence relation defined in it by means of the action of a group $G$, we obtain a miniversal deformation of an orbit through a minivesal deformation in $M$ with regard ...