Exploració per autor "García Planas, María Isabel"Més informacióMés informació

Ara es mostren els items 128-147 de 171

    • Permutation non-isometric linear codes over a finite field 

      García Planas, María Isabel; Magret Planas, Maria dels Dolors (Universidad de Cádiz, 2015)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      A method for the enumeration of permutation non-isometric linear codes is presented

    • 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)
      Text en actes de congrés
      Accés obert
      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 ...

    • 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)
      Comunicació de congrés
      Accés obert
      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 ...

    • Perturbation analysis of a matrix differential equation ¿x=ABx 

      García Planas, María Isabel; Klymchuk, Tetiana (UP4, Institute of Sciences, S.L., 2018)
      Article
      Accés restringit per política de l'editorial
      Two complex matrix pairs (A,B) and (A',B') are contragrediently equivalent if there are nonsingular S and R such that (A',B')=(S-1AR,R-1BS). M.I. García-Planas and V.V. Sergeichuk (1999) constructed a miniversal deformation ...

    • Perturbation analysis of eigenvalues of polynomial matrices smoothly depending on parameters 

      García Planas, María Isabel; Tarragona Romero, Sonia (Wseas Press, 2011-07)
      Capítol de llibre
      Accés obert
      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)
      Text en actes de congrés
      Accés obert
      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 = ...

    • Perturbation of multiagent linear systems 

      García Planas, María Isabel (WSEAS Press, 2023-03-07)
      Article
      Accés obert
      The main objective of this note is to explore if, making a small perturbation of an uncontrollable multiagent linear system with a previously interrelationship topology established, a controllable multi-agent system with ...

    • El Portafoli de l'estudiant en Mahara-Moodle 

      Taberna Torres, Judit; García Planas, María Isabel (Universitat Politècnica de Catalunya. Institut de Ciències de l'Educació, 2013-06)
      Comunicació de congrés
      Accés obert
      És ben conegut el potencial que té l’ús del portfoli del estudiant per a fer visible tant per ell com per a els demès, de com i fins a quin nivell ha assolit els seus objectius. Mahara és un sistema d'e-portafoli que es ...

    • Reduction to versal deformations of matrix pencils and matrix pairs with application to control theory 

      García Planas, María Isabel; Mailybaev, Alexei A. (2002)
      Article
      Accés obert
      Matrix pencils under the strict equivalence and matrix pairs under the state feedback equivalence are considered. It is known that a matrix pencil (or a matrix pair) smoothly dependent on parameters can be reduced locally ...

    • Regularity of the Brunovsky-Kronecker stratification 

      Ferrer Llop, Josep; García Planas, María Isabel; Puerta Sales, Ferran (1998)
      Article
      Accés obert
      We study the partition of the set of pairs of matrices according to the Brunovsky- Kronecker type. We show that it is a constructible stratification, and that it is Whitney regular when the second matrix is a column matrix. ...

    • Second order generalized linear systems. A geometric approach 

      Clotet Juan, Josep; García Planas, María Isabel (2004)
      Article
      Accés obert
      Let (E;A1;A2;B) be a quadruple of matrices representing a two-order generalized time-invariant linear system, E¨x = A1 ˙ x + A2x + Bu. We study the controllability character under an algebraic point of view.

    • Sensivity and stability of singular systems under 

      García Planas, María Isabel (WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12-01)
      Article
      Accés obert
      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 Mp£n(C) and B 2 Mn£m(C), un- der proportional and derivative feedback. Using ...

    • Sensivity and stability of singular systems under proportional and derivative 

      García Planas, María Isabel (WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
      Capítol de llibre
      Accés restringit per política de l'editorial
      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 Mp£n(C) and B 2 Mn£m(C), un- der proportional and derivative feedback. Using ...

    • Sensivity and stability of singular systems under proportional and derivative feedback 

      García Planas, María Isabel (WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
      Comunicació de congrés
      Accés obert

    • Solving disturbance decoupling for singular systems by p&d-feedback and p&d-output injection 

      García Planas, María Isabel (IPACS Electrinic Library, 2011)
      Capítol de llibre
      Accés obert
      Singular systems are an important class of systems from both point of view theoretical and practical. In this paper we analyze the problem of constructing feedbacks and/or output injections that suppress this disturbance in ...

    • Stability analysis of a clamped-pinned pipeline conveying fluid 

      García Planas, María Isabel; Mediano Valiente, Begoña (WSEAS Press, 2014-01)
      Article
      Accés obert
      Increasing advances in materials engineering and cost reduction in their testing have lead to the study of the stability of vibration of pipes conveying fluid an important problem to deal with. Currently, such analysis ...

    • Stability analysis of a wind turbine tower using reachability properties of switched systems 

      García Planas, María Isabel; Mediano Valiente, Begoña (2015-07)
      Article
      Accés restringit per política de l'editorial
      Wind turbines are increasingly installed to generate electricity around the whole, as an alternative energy source to conventional fossil fuels in order to reduce fossil fuel energy dependence and environment impact. ...

    • Stability of a pipeline hydraulic fluid with one end fixed 

      García Planas, María Isabel; Mediano Valiente, Begoña (2011-09-05)
      Report de recerca
      Accés obert
      The dynamics and stability of pipes conveying fluid has been studied thoroughly in the last decades. In this paper we study the stability in the Liapunov sense, of a clamped-pinned pipe conveying fluid at a low speed. After ...

    • Standardizable generalized systems under discrete derivative feedback 

      Clotet Juan, Josep; García Planas, María Isabel (2002)
      Article
      Accés obert
      Given a quadruple of matrices $(E,A,B,C)$ representing a generalized discrete time-invariant system $Ex(k+1)=Ax(k)+Bu(k), y(k)=Cx(k)$, we obtain necessary and sufficient conditions for which the system can be standardized ...

    • Structural consensus controllability of singular multi-agent linear dynamic systems 

      García Planas, María Isabel (2016)
      Article
      Accés obert
      The analysis of control of linear multi-agent systems has recently emerged as an important domain that is receiving a lot of interest from a variety of research communities, and consensus plays a fundamental role in this ...