Exploració per autor "Clotet Juan, Josep"
Ara es mostren els items 9-20 de 20
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Deformaciones miniversales de parejas de tensores de segundo orden
(Universidad de Sevilla, 2007-09)
Text en actes de congrés
Accés obertConsideramos 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 ... -
Distance from a controllable switched linear system to an uncontrollable one
(Servicio de publicaciones de la UPV, 2010)
Comunicació de congrés
Accés obertThe 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 ... -
Estimating distances from quadruples satisfying stability properties to quadruples not satisfying them
(2000)
Article
Accés obertWe consider quadruples of matrices (E,A,B,C) defining generalized linear multivariable time-invariant dynamical systems, with E,A square matrices and B, C rectangular matrices. Using geometrical techniques we present ... -
Familias diferenciables de inversas de Drazin
(2005)
Article
Accés obertLas inversas de Drazin son una clase de inversa generalizada entre cuyas aplicaciones podemos mencionar la resoluci´on de ecuaciones diferenciales, ecuaciones en diferencias, estudio de cadenas de Markov, etc. En esta ... -
Orbits of controllable and observable systems
(1999)
Article
Accés obertLet a time-invariant linear system $\left .\aligned \dot x(t)&=Ax(t)+Bu(t)\\y(t)&=Cx(t)\endaligned \right \}$ corresponding to a realization of a prescribed transfer function matrix can be represented by triples of ... -
Perturbation of quadrics
(2000)
Article
Accés obertThe aim of this paper is to study what happens when a slight perturbation affects the coefficients of a quadratic equation defining a variety (a quadric) in R^n. Structurally stable quadrics are those a small perturbation ... -
Second order generalized linear systems. A geometric approach
(2004)
Article
Accés obertLet (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. -
Some considerations about reachability of switched linear singular systems
(2015-11-30)
Article
Accés obertNo necessary and sufficient condition for reachability of switched linear singular systems has been found, exceptuating the case of the so-called “equisingular systems”. Such a condition is not valid in the general case, ... -
Standardizable generalized systems under discrete derivative feedback
(2002)
Article
Accés obertGiven 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 ... -
Switched singular linear systems
(IEEE Press. Institute of Electrical and Electronics Engineers, 2009-06)
Text en actes de congrés
Accés obertWe 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 ... -
Switched singular linear systems and reachability
(2011-10)
Report de recerca
Accés obertWe consider switched singular linear systems and conditions for such a system to be reachable/controllable in the cases where some hypotheses hold. -
Upper bounds for the distance between a controllable switched linear system and the set of uncontrollable ones
(2013-05-28)
Article
Accés oberthe set of controllable switched linear systems is an open and dense set in the space of all switched linear systems. Therefore it makes sense to compute the distance from a controllable system to the nearest uncontrollable ...
