Exploració per autor "Magret Planas, Maria dels Dolors"
Ara es mostren els items 6-25 de 35
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D-stratification and hierarchy graphs of the space of order 2 and 3 matrix pencils
(Universal journal of mathematics and applications, 2019)
Article
Accés obertSmall changes in the entries of a matrix pencil may lead to important changes in its Kronecker normal form. Studies about the effect of small perturbations have been made when considering the stratification associated with ... -
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 ... -
Differentiable families of planar bimodal linear control systems
(2014-06)
Article
Accés obertWe 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 ... -
Differentiable families of stabilizers for planar bimodal linear control systems
(American Institute of Physics (AIP), 2013)
Text en actes de congrés
Accés obertWe 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 ... -
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 ... -
Eigenvalues and eigenvectors of monomial matrices
(Universidad de Cádiz, 2015)
Text en actes de congrés
Accés obertSpectral properties of special matrices matrices have been widely applied. We focus on monomial matrices over a finite field $F_{p}$, $p \neq 2$. We describe a way to find the minimal annihilating polynomial, a set of ... -
Eigenvectors of permutation matrices
(2015)
Article
Accés obertThe spectral properties of special matrices have been widely studied, because of their applications. We focus on permutation matrices over a finite field and, more concretely, we compute the minimal annihilating polynomial, ... -
Eines d'àlgebra lineal i matricial per a l'enginyeria
(2014)
Llibre
Accés obert -
Entorn del desenvolupament històric de les equacions algebraiques
(2005)
Article
Accés obertEl conjunt dels nombres enters i el de polinomis amb coeficients en un cos són els exemples més bàsics d’anells commutatius, que constitueixen l’essència de l’àlgebra commutativa, branca de les matemàtiques estretament ... -
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 ... -
Forma reduïda de Jordan : aplicacions
(Edicions UPC, 1997)
Llibre
Accés restringit a la comunitat UPCLa forma reduïda de Jordan té un paper fonamental en la classificació d'endoformismes i és extramadament important en la Matemàtica Aplicada, ja que dóna resposta a qüestions relatives a una gran diversitat d'aplicacions. ... -
Higher-Order Singular Systems and Polynomial Matrices
(2005)
Article
Accés obertThere is a one-to-one correspondence between the set of quadruples of matrices defining singular linear time-invariant dynamical systems and a subset of the set of polynomial matrices. This correspondence preserves the ... -
Introducción a la teoría de matrices polinomiales
(Edicions UPC, 1999)
Llibre
Accés restringit a la comunitat UPCEl presente libro proporciona un tratamiento comprensivo de la teoría de matrices polinomiales, que es una parte del álgebra lineal cuyos conceptos y resultados principales han sido obtenidos en las dos últimas décadas y ... -
Isometries of the hamming space and equivalence relations of linear codes over a finite field
(Springer, 2016)
Capítol de llibre
Accés restringit per política de l'editorialDetection and error capabilities are preserved when applying to a linear code an isomorphism which preserves Hamming distance. We study here two such isomorphisms: permutation isometries and monomial isometries -
Miniversal Deformations of Bimodal Picewise Linear Systems
(Servicio de publicaciones de la UPV, 2010)
Comunicació de congrés
Accés obertBimodal 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 ... -
Monomial codes seen as invariant subspaces
(2017)
Article
Accés obertIt is well known that cyclic codes are very useful because of their applications, since they are not computationally expensive and encoding can be easily implemented. The relationship between cyclic codes and invariant ... -
Mòduls locals de sistemes dinàmics lineals amb coeficients constants
(Universitat Politècnica de Catalunya, 1997-02-17)
Tesi
Accés obertLa present memòria estudia l'estabilitat estructural de ternes de matrius. Es ben conegut que els sistemes dinàmic lineals amb coeficients constants poden venir definits per ternes de matrius, d'aquí l'interès d'aquest ... -
On the existence of a common eigenvector for all matrices in the commutant of a single matrix
(Elsevier, 2012-09)
Article
Accés restringit per política de l'editorialThe main purpose of this paper is to study common invariant subspaces of any matrix in the centralizer of a given matrix A∈Mn(F), where F denotes an algebraically closed field. In particular, we obtain a necessary and ... -
Permutation non-isometric linear codes over a finite field
(Universidad de Cádiz, 2015)
Text en actes de congrés
Accés restringit per política de l'editorialA method for the enumeration of permutation non-isometric linear codes is presented
