Graphic summary
  • Show / hide key
  • Information


Scientific and technological production
  •  

1 to 50 of 140 results
  • Access to the full text
    Differentiable families of planar bimodal linear control systems  Open access

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta
    Mathematical problems in engineering
    Vol. 2014, num. Article ID 292813, p. 1-9
    DOI: 10.1155/2014/292813
    Date of publication: 2014-06
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 obtain its stratification diagram and, if controllability holds for each value of the parameters, we construct a differentiable family of feedbacks which stabilizes both subsystems for each value of the parameters.

  • Miniversal deformations of observable marked matrices

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Mathematical methods in the applied sciences
    Vol. 37, num. 1, p. 20-31
    DOI: 10.1002/mma.2780
    Date of publication: 2014
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    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 pair when it is observable, and the subspace $\mathbb C^d\times\{0\}$ is marked. Moreover, we obtain the dimension of the orbit, characterize the structurally stable vertical pairs, and study the effect of each deformation parameter. Copyright © 2013 JohnWiley & Sons, Ltd.

  • Determinant of any matrix that belongs to Z(J)

     Ferrer Llop, Jose; Mingueza, David; Montoro López, Maria Eulalia
    Meeting on Computer Algebra and Applications
    p. 111-114
    Presentation's date: 2014-06-18
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Closed orbits in planar bimodal linear systems

     Ferrer Llop, Jose; Peña Carrera, Marta; Susin Sanchez, Antonio
    International Linear Algebra Society Conference
    Presentation's date: 2014-08-08
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Access to the full text
    Controllability of continuous bimodal linear systems  Open access

     Ferrer Llop, Jose; Pacha Andujar, Juan Ramon; Peña Carrera, Marta
    Mathematical problems in engineering
    Vol. 2013, p. 1-14
    DOI: 10.1155/2013/342548
    Date of publication: 2013-05-01
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 to the unobservable case, and for these ones we obtain a simple explicit characterization of controllability for dimensions 2 and 3, as well as some partial criteria for higher dimensions

    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 to the unobservable case, and for these ones we obtain a simple explicit characterization of controllability for dimensions 2 and 3, as well as some partial criteria for higher dimensions.

  • Determinant of a matrix that commutes with a Jordan matrix

     Montoro López, Maria Eulalia; Ferrer Llop, Jose; Mingueza, David
    Linear algebra and its applications
    Vol. 439, num. 12, p. 3945-3954
    DOI: 10.1016/j.laa.2013.10.023
    Date of publication: 2013-10-30
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Let F be an arbitrary field, Mn(F) the set of all matrices n×n over F and J¿Mn(F) a Jordan matrix. In this paper, we obtain an explicit formula for the determinant of any matrix that commutes with J, i.e., the determinant of any element T¿Z(J), the centralizer of J. Our result can also be extended to any T'¿Z(A), where A¿Mn(F), can be reduced to J=S-1AS. This is because T=S-1T'S¿Z(J), and clearly View the MathML source. If F is algebraically closed, any matrix A can be reduced in this way to a suitable J. In order to achieve our main result, we use an alternative canonical form W¿Mn(F) called the Weyr canonical form. This canonical form has the advantage that all matrices K¿Z(W) are upper block triangular. The permutation similarity of T¿Z(J) and K¿Z(W) is exploited to obtain a formula for the determinant of T. The paper is organized as follows: Section 2 contains some definitions and notations that will be used through all the paper. In Section 3, matrices T¿Z(J) are described and the determinant of T is computed in a particular case. In Section 4, we recall the Weyr canonical form W of a matrix and the corresponding centralizer Z(W). A formula to compute the determinant of any K¿Z(W) is rewritten. Finally, in Section 5 an explicit formula for the determinant of any T¿Z(J) is obtained.

    Let F be an arbitrary field, Mn(F) the set of all matrices n×n over F and J∈Mn(F) a Jordan matrix. In this paper, we obtain an explicit formula for the determinant of any matrix that commutes with J, i.e., the determinant of any element T∈Z(J), the centralizer of J. Our result can also be extended to any T′∈Z(A), where A∈Mn(F), can be reduced to J=S−1AS. This is because T=S−1T′S∈Z(J), and clearly View the MathML source. If F is algebraically closed, any matrix A can be reduced in this way to a suitable J. In order to achieve our main result, we use an alternative canonical form W∈Mn(F) called the Weyr canonical form. This canonical form has the advantage that all matrices K∈Z(W) are upper block triangular. The permutation similarity of T∈Z(J) and K∈Z(W) is exploited to obtain a formula for the determinant of T. The paper is organized as follows: Section 2 contains some definitions and notations that will be used through all the paper. In Section 3, matrices T∈Z(J) are described and the determinant of T is computed in a particular case. In Section 4, we recall the Weyr canonical form W of a matrix and the corresponding centralizer Z(W). A formula to compute the determinant of any K∈Z(W) is rewritten. Finally, in Section 5 an explicit formula for the determinant of any T∈Z(J) is obtained.

  • Access to the full text
    Differentiable families of stabilizers for planar bimodal linear control systems  Open access

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta
    International Conference on Numerical Analysis and Applied Mathematics
    p. 2068-2071
    DOI: 10.1063/1.4825942
    Presentation's date: 2013-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 ones, we construct a differentiable family of feedbacks which point wise stabilizes both subsystems

    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 ones, we construct a differentiable family of feedbacks which pointwise stabilizes both subsystems.

  • Access to the full text
    Structural stability of planar bimodal linear systems  Open access

     Ferrer Llop, Jose; Peña Carrera, Marta; Susin Sanchez, Antonio
    International Conference on Numerical Analysis and Applied Mathematics
    p. 2205-2208
    DOI: 10.1063/1.4825976
    Presentation's date: 2013-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    We consider bimodal linear dynamical systems consisting of two linear dynamics acting on each side of a given hyperplane, assuming continuity along the separating hyperplane. Focusing in the planar case, we describe which of these systems are structurally stable

    We consider bimodal linear dynamical systems consisting of two linear dynamics acting on each side of a given hyperplane, assuming continuity along the separating hyperplane. Focusing in the planar case, we describe which of these systems are structurally stable.

  • Access to the full text
    Learning automation to teach mathematics  Open access

     Ferrer Llop, Jose; Peña Carrera, Marta; Ortiz Caraballo, Carmen
    DOI: DOI: 10.5772/2327
    Date of publication: 2012-07
    Book chapter

    Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

  • Estructuras geométricas de los sistemas de control lineales, lineales a trozos y sistemas conmutados

     Compta Creus, Albert; Clotet Juan, Jose; Garcia Planas, Maria Isabel; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta; Puerta Coll, Francisco Javier; Montoro López, Maria Eulalia; Puerta Sales, Fernando; Ferrer Llop, Jose
    Competitive project

     Share

  • Access to the full text
    Classification of monogenic invariant subspaces and uniparametric linear control systems  Open access

     Compta Creus, Albert; Ferrer Llop, Jose
    DOI: MTM 2011-23892
    Date: 2012-12
    Report

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The classification of the invariant subspaces of an endomorphism has been an open problem for a long time, and it is a ”wild” problem in the general case. Here we obtain a full classification for the monogenic ones. Some applications are derived: in particular, canonical forms for uniparametric linear control systems, non necessarily controllable, with regard to linear changes of state variables

  • Access to the full text
    Miniversal deformations of observable marked matrices  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Date: 2012
    Report

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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. Moreover, we obtain the dimension of the orbit, characterize the structurally stable vertical pairs and study the effect of each deformation parameter.

  • Perturbations preserving conditioned invariant subspaces

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Mathematical methods in the applied sciences
    Vol. 35, num. 3, p. 249-371
    DOI: 10.1002/mma.1553
    Date of publication: 2012-02
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Given the set of matrix pairsM Mm,n.C/ Mn.C/ keeping a subspace S Cn invariant, we obtain a miniversal deformation of a pair belonging to an open dense subset ofM. It generalizes the known results when S is a supplementary subspace of the unobservable one.

  • Clasificación de los subespacios invariantes monogenerados

     Compta Creus, Albert; Ferrer Llop, Jose
    Encuentro de Álgebra Lineal, Análisis Matricial y Aplicaciones
    p. 33
    Presentation's date: 2012-06
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Stabilization of controllable planar bimodal linear systems

     Peña Carrera, Marta; Ferrer Llop, Jose
    SIAM Conference on Applied Linear Algebra
    p. 146
    Presentation's date: 2012-06-21
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Estructuras geométricas de los sistemas lineales de control y su extensión a los sistemas conmutados

     Clotet Juan, Jose; Montoro López, Maria Eulalia; Peña Carrera, Marta; Compta Creus, Albert; Puerta Coll, Francisco Javier; Puerta Sales, Fernando; Garcia Planas, Maria Isabel; Magret Planas, Maria Dels Dolors; Ferrer Llop, Jose
    Competitive project

     Share

  • Access to the full text
    Geometric structure of single/combined equivalence classes of a controllable pair  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Electronic journal of linear algebra
    Vol. 22, p. 1112-1128
    Date of publication: 2011-11
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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. In particular, it is proved that they are differentiable manifolds and their dimensions are computed. Some remarks concerning the effect of different kinds of feedbacks are derived.

  • On the effect of friend feedbacks

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Mathematical methods in the applied sciences
    Vol. 34, num. 3, p. 309-314
    DOI: 10.1002/mma.1357
    Date of publication: 2011
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    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 particular, when the natural controllability hypothesis hold, both pole assignments are simultaneously possible bymeans of a convenient friend feedback. Copyright

  • Orbit stratification of non-controllable bimodal systems

     Peña Carrera, Marta; Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors
    Conference of the International Linear Algebra Society
    p. 57
    Presentation's date: 2011-08-23
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Contribución al estudio de los subespacios invariantes

     Compta Creus, Albert; Ferrer Llop, Jose
    Congreso de Ecuaciones Diferenciales y Aplicaciones y Congreso de Matemàtica Aplicada
    Presentation's date: 2011-09-06
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Bimodal piecewise linear dynamical systems. Reduced forms

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta
    International journal of bifurcation and chaos
    Vol. 20, num. 9, p. 2795-2808
    DOI: 10.1142/S0218127410027362
    Date of publication: 2010
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Planar bimodal piecewise linear systems. Bifurcation diagrams

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Pacha Andujar, Juan Ramon; Peña Carrera, Marta
    Boletín de la Sociedad Española de Matemática Aplicada
    Vol. 51, p. 55-63
    Date of publication: 2010
    Journal article

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Access to the full text
    Output regulation problem for differentiable families of linear systems  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Mathematical problems in engineering
    Vol. 2010, num. ID 698548, p. 1-9
    DOI: 10.1155/2010/698548
    Date of publication: 2010
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 the given family. Moreover, we construct it when these conditions hold.

  • Learning engineering to teach mathematics

     Ferrer Llop, Jose; Peña Carrera, Marta; Ortiz Caraballo, Carmen
    Frontiers in education conference
    num. S1J, p. 1-6
    DOI: /fie-conference.org/fie2010/papers/1207.pdf
    Date of publication: 2010-10
    Journal article

     Share Reference managers Reference managers Open in new window

  • Access to the full text
    Local differentiable pole assignment  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Linear and multilinear algebra
    Vol. 58, num. 5, p. 563-569
    DOI: 10.1080/03081080902745304
    Date of publication: 2010
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 point out that no additional hypothesis is needed. In fact, simple approaches work in particular cases (controllable pairs, constancy of the dimension of the controllable subspace, and so on). Here the general case is proved by means of Arnold’s techniques: the key point is to reduce the construction to a versal deformation of the central pair; in fact to a quite singular miniversal one for which the family of feedbacks can be explicitly constructed. As a direct application, a differentiable family of stabilizing feedbacks is obtained, provided that the central pair is stabilizable.

  • Computation of canonical forms and miniversal deformations of bimodal dynamical systems

     Peña Carrera, Marta; Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Pacha Andujar, Juan Ramon
    Conference of the International Linear Algebra Society
    p. 16
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Learning technology to teach mathematics

     Ferrer Llop, Jose; Peña Carrera, Marta; Ortiz Caraballo, Carmen
    American Mathematical Society. National Meeting
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Access to the full text
    Distance from a controllable switched linear system to an uncontrollable one  Open access

     Clotet Juan, Jose; Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors
    Meeting on Linear Algebra Matrix Analysis and Applications
    p. 1-7
    Presentation's date: 2010-06-02
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    The set of controllable switched linear systems is an open set in the space of all switched linear systems. Then it makes sense to compute the distance from a controllable switched linear system to the set of uncontrollable systems. In this work we obtain an upper bound for such distance.

  • Access to the full text
    Learning engineering to teach mathematics  Open access

     Ferrer Llop, Jose; Peña Carrera, Marta; Ortiz, Carmen
    Frontiers in Education Conference
    p. 1-6
    DOI: /fie-conference.org/fie2010/papers/1207.pdf
    Presentation's date: 2010-10-27
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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% of the credits from basic courses must be related to technological applications. To this end, during the past academic year a mathematical engineering seminar was held with each session dealing with one technological discipline. The main goal of the seminar, which relied on the presence of speakers from both mathematics and engineering departments, was to identify the most commonly used mathematical tools. Furthermore, a set of exercises and some guidelines addressed to faculty lacking an engineering background were created. Here, we present some of this material: first, a summary of the collection of exercises illustrating the use of Linear Algebra in different engineering areas such as Mechanical Engineering, Control and Automation, and second, some exercises

  • Access to the full text
    Perturbations preserving conditioned invariant subspaces  Open access

     Peña Carrera, Marta; Compta Creus, Albert; Ferrer Llop, Jose
    International Conference on Circuits, Systems, Signals
    p. 204-210
    Presentation's date: 2010-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    Given the set of matrix pairs M ⊂ Mm,n(C) × Mn(C) keeping a subspace S ⊂ Cn invariant, we obtain a miniversal deformation of a pair belonging to an open dense subset of M. It generalizes the known results when S is a supplementary subspace of the unobservable one.

  • Access to the full text
    Miniversal Deformations of Bimodal Picewise Linear Systems  Open access

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Pacha Andujar, Juan Ramon; Peña Carrera, Marta
    Meeting on Linear Algebra Matrix Analysis and Applications
    p. 1-6
    Presentation's date: 2010-06
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 deformations, by using reduced forms.

    Keywords: Bimodal piecewise linear system, miniversal deformations, reduced forms.

  • A lower bound for the distance from a controllable switched linear system to an uncontrollable one

     Clotet Juan, Jose; Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors
    Conference of the International Linear Algebra Society
    p. 55
    Presentation's date: 2010-06-20
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Access to the full text
    Geometric structure of the equivalence classes of a controllable pair  Open access

     Peña Carrera, Marta; Compta Creus, Albert; Ferrer Llop, Jose
    International Conference on Circuits, Systems, Signals
    p. 211-218
    Presentation's date: 2010-09
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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. In particular, we prove that they are differentiable manifolds and we compute their dimensions. Some remarks concerning the effect of different kinds of feedbacks are derived.

  • Stratification and bifurcation diagrams of bimodal piecewise linear dynamical system

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Pacha Andujar, Juan Ramon; Peña Carrera, Marta
    Int. conference of non-autonomous and stochastic dynamical systems, and multidisciplinary applications (NSDS'09)
    p. 30
    Presentation's date: 2009-06
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Access to the full text
    Output regulation problem for differentiable families of linear systems  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    AIP Conference proceedings
    Vol. 1168, p. 49-52
    DOI: 10.1063/1.3241507
    Date of publication: 2009
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 the given family. Moreover, we construct it when these conditions hold.

  • Access to the full text
    On the effect of friend feedbacks  Open access

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    AIP Conference proceedings
    Vol. 1168, num. 3, p. 564-567
    DOI: 10.1063/1.3241524
    Date of publication: 2009
    Journal article

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    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 co-restriction to S?. In particular, if (A;B) is controllable and S is a controllability subspace, both pole assignments are simultaneously possible by means of a convenient friend feedback.

  • Use of reduced forms in the disturbance decoupling problem

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Linear algebra and its applications
    Vol. 430, num. 5-6, p. 1574-1589
    DOI: 10.1016/j.laa.2008.04.033
    Date of publication: 2009-03
    Journal article

    Read the abstract Read the abstract View View Open in new window  Share Reference managers Reference managers Open in new window

    Specific algorithms, such as those involving the supremal of the invariant subspaces contained in a suitable subspace, are known to be able to test whether a disturbance decoupling problem (DDP) is solvable. Here, by reducing the system to its Molinari form, we obtain an alternative description of this supremal object and compute its dimension. Hence we have a general result for solving the decoupling provided that a Molinari basis is known. In particular, a necessary numerical condition for it is derived. The same technique is applied to the DDPS, that is, when stability of the decoupled closed loop system is required.

  • Access to the full text
    Switched singular linear systems  Open access

     Clotet Juan, Jose; Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors
    Mediterranean Conference on Control and Automation
    p. 1343-1347
    DOI: 10.1109/MED.2009.5164733
    Presentation's date: 2009-06
    Presentation of work at congresses

    Read the abstract Read the abstract Access to the full text Access to the full text Open in new window  Share Reference managers Reference managers Open in new window

    We consider switched singular linear systems and determine the set of reachable/controllable states. We derive necessary and sufficient conditions for such a system to be reachable/controllable when an “equisingularity condition” holds.

  • Bimodal Piecewise linear systems. Reduced forms

     Ferrer Llop, Jose; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta
    International Workshop on dynamical systems and multidisciplinary applications
    Presentation of work at congresses

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Use of reduced forms in the disturbance decoupling problem

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Date: 2008-04
    Report

     Share Reference managers Reference managers Open in new window

  • Geometric Structure of the equivalence classes of a controllable pair

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    International Linear Algebra Society (ILAS). Conference
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Perturbations preserving conditioned invariant subspaces

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    International Linear Algebra Society (ILAS). Conference
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Geometría de las perturbaciones de sistemas lineales de control

     Puerta Coll, Francisco Javier; Compta Creus, Albert; Magret Planas, Maria Dels Dolors; Peña Carrera, Marta; Clotet Juan, Jose; Ferrer Llop, Jose; Puerta Sales, Fernando
    Competitive project

     Share

  • Estructura diferenciable de las clases de equivalencia de un par controlable

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Congreso de Ecuaciones Diferenciales y Aplicaciones / Congreso de Matemática Aplicada
    p. 1-8
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Use of reduced forms in the disturbance decoupling problem

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    International Linear Algebra Society (ILAS). Conference
    p. 6
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Realización de perturbaciones

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Séptimo Encuentro Plenario de Teoría de Sistemas
    Presentation's date: 2007-01-01
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window

  • Local differentiable pole assignment

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Date: 2007-02
    Report

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Geometric structure of the equivalence classes of a controllable pair

     Compta Creus, Albert; Ferrer Llop, Jose; Peña Carrera, Marta
    Date: 2007-05
    Report

    View View Open in new window  Share Reference managers Reference managers Open in new window

  • Uso de formas reducidas en el "disturbance decoupling problem"

     Ferrer Llop, Jose
    Séptimo Encuentro Plenario de Teoría de Sistemas
    Presentation's date: 2007-01-01
    Presentation of work at congresses

     Share Reference managers Reference managers Open in new window