Exploració per autor "Puerta Sales, Ferran"
Ara es mostren els items 18-32 de 32
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Regularity of the Brunovsky-Kronecker stratification
Ferrer Llop, Josep; García Planas, María Isabel; Puerta Sales, Ferran (1998)
Article
Accés obertWe 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. ... -
Sistemes lineals: una aproximació a algun dels seus conceptes i problemes rellevants
Puerta Sales, Ferran (2014-01-10)
Altres
Accés obertL'objectiu que m'he proposat al preparar aquesta exposició ha estat el de mostrar. per una banda, com alguns dels problemes bàsics de la teoria de Sistemes Dinàmics Lineals tenen una resposta senzilla en termes de l' ... -
Stability of (A,B)-invariant subspaces
Peña Carrera, Marta; Puerta Coll, Xavier; Puerta Sales, Ferran (2005)
Article
Accés obertGiven a pair of matrices (A;B) we study the stability of their invariant subspaces from the geometry of the manifold of quadruples (A;B; S; F) where S is an (A;B)-invariant subspace and F is such that (A + BF)S ½ S. In ... -
Stability of <math>(A, B)</math>-invariant subspaces
Puerta Sales, Ferran; Puerta Coll, Xavier (2003)
Report de recerca
Accés obertGiven a pair of matrices (A,B) we study the stability of their invariant subspaces from a geometric point of view. The main tool is the manifold of quadruples((A;B); F; S) where S is an (A,B)-invariant subspace and F is ... -
Stratification and bundle structure of the set of conditioned invariant subspaces in the general case
Ferrer Llop, Josep; Puerta Sales, Ferran; Puerta Coll, Xavier (2000)
Article
Accés obertWe extend some known results about the smooth stratification of the set of conditioned invariant subspaces for a general pair $(C,A)\in\w C^n\times\w C^{n+m}$ without any assumption on the observability. More precisely ... -
Stratification and bundle structure of the set of conditioned invariant subspaces in the general case
Ferrer Llop, Josep; Puerta Sales, Ferran; Puerta Coll, Xavier (2003)
Article
Accés obertWe extend some known results about the smooth stratification of the set of conditioned invariant subspaces for a general pair $(C,A)\in\w C^n\times\w C^{n+m}$ without any assumption on the observability. More precisely ... -
Stratification and bundle structure of the set of general (A,B)-invariant subspaces
Ferrer Llop, Josep; Puerta Sales, Ferran; Puerta Coll, Xavier (1998)
Article
Accés obertGiven (A,B) in Hom(C^(n+m) C^n), we prove that the set of (A,B)-invariant subspaces having a fixed Brunovsky-Kronecker structure is a submanifold of the corresponding grassman manifold, and we compute its dimension. Also, ... -
TEORIA DE SISTEMES LINEALS // SISTEMES DE CONTROL LINIAL (Examen 1r quadrim)
Puerta Sales, Ferran (Universitat Politècnica de Catalunya, 2002-01-22)
Examen
Accés restringit a la comunitat UPC -
TEORIA DE SISTEMES LINEALS // SISTEMES DE CONTROL LINIAL (Examen 1r quadrim)
Puerta Sales, Ferran (Universitat Politècnica de Catalunya, 2002-01-22)
Examen
Accés restringit a la comunitat UPC -
TEORIA DE SISTEMES LINEALS // SISTEMES DE CONTROL LINIAL (Examen 1r quadrim)
Puerta Sales, Ferran (Universitat Politècnica de Catalunya, 2001-11-16)
Examen
Accés restringit a la comunitat UPC -
TEORIA DE SISTEMES LINEALS // SISTEMES DE CONTROL LINIAL (Examen 1r quadrim)
Puerta Sales, Ferran (Universitat Politècnica de Catalunya, 2001-11-16)
Examen
Accés restringit a la comunitat UPC -
Teoría de Sistemas Lineales
Puerta Sales, Ferran (2000)
Working paper
Accés obert -
Versal deformations in orbit spaces
Puerta Sales, Ferran; Puerta Coll, Xavier; Tarragona Romero, Sonia (2003)
Article
Accés obertGiven 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
Accés obertGiven 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 ... -
Versal deformations of invariant subspaces
Ferrer Llop, Josep; Puerta Sales, Ferran (Elsevier, 2001)
Article
Accés obertWe describe a miniversal deformation of invariant subspaces (with regard to a fixed endomorphism) by means of a technique which can be applied to obtain explicitly miniversal deformations in a general orbit space. In ...