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Recent Submissions
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Convolutional codes under control theory point of view. Analysis of output-observability
(WSEAS Press, 2013)
Part of book or chapter of book
Open AccessIn this work we make a detailed look at the algebraic structure of convolutional codes using techniques of linear systems theory. The connection between these concepts help to better understand the properties of ... -
Factorization of the transfer matrix of a singular linear systems
(IPACS Electrinic Library, 2011)
Part of book or chapter of book
Restricted access - publisher's policyGiven a linear dynamic time invariant represented by x + ( t ) = Ax ( t ) Bu ( t ) , y ( t ) = Cx ( t ) , we analyze con- ditions for obtention of a coprime factorization of trans- fer matrices of ... -
Learning automation to teach mathematics
(InTech, 2012-07)
Part of book or chapter of book
Open Access -
Input Observability Analysis of Fixed Speed Wind Turbine
(WSEAS Press, 2012-04)
Part of book or chapter of book
Open AccessThis paper deals with the concept of input observability in a fixed speed wind turbine. A linear system has been calculated from the nonlinear equations of the squirrel cage induction generator, supposing it connected directly ... -
Output observability of time-invariant singular linear systems
(IPACS Electrinic Library, 2011)
Part of book or chapter of book
Open AccessIn this paper finite-dimensional singular linear discrete-time-invariant systems in the form Ex(k + 1) = Ax(k) + Bu(k), y(k) = Cx(k) where E;A 2 M = Mn(C), B 2 Mn£m(C), C 2 Mp£n(C), describing convolutional codes are ... -
Solving disturbance decoupling for singular systems by p&d-feedback and p&d-output injection
(IPACS Electrinic Library, 2011)
Part of book or chapter of book
Open AccessSingular 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 ... -
Perturbation analysis of eigenvalues of polynomial matrices smoothly depending on parameters
(Wseas Press, 2011-07)
Part of book or chapter of book
Open AccessLet 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(¸). -
Controllability of time-invariant singular linear systems
(World Scientific, 2010)
Part of book or chapter of book
Restricted access - publisher's policyWe 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 Mn(C) and B 2 Mn£m(C), under proportional and derivative feedback. Structural ... -
An alternative complete system of invariants for matrix pencils under strict equivalence
(WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
Part of book or chapter of book
Restricted access - publisher's policyWe 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
(WSEAS Press. World Scientific and Engineering Academy and Society, 2009-12)
Part of book or chapter of book
Restricted access - publisher's policyWe 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 ... -
Disturbance decoupling for singulars systems by proportional and derivate feedback and proportional and derivate outputm injection
(World Scientific, 2010)
Part of book or chapter of book
Open AccessWe study the disturbance decoupling problem for linear time invariant singular systems. We give necessary and su±cient conditions for the existence of a solution to the disturbance decoupling problem with or without ... -
Linearization of local cohomology modules
(American Mathematical Society, 2003)
Part of book or chapter of book
Open AccessThe aim of this work is to describe the linear structure of regular holonomic $\mathcal D$-modules with support a normal crossing with variation zero introduced in [Local cohomology, arrangements of subspaces and monomial ...
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