Buscar
Mostrando ítems 1-10 de 551
(A, B)-Invariance conditions of polyhedral domains for continuous-time systems
(European Journal of Control, 1999)
This paper provides an explicit characterisation of the (A,B)-invariance property of polyhedral sets with respect to linear continuous-time systems. A typical application of the concept of (A,B)-invariance is to investigate ...
(A, B)-invariant polyhedral sets of linear discrete-time systems
(1999)
The problem of confining the trajectory of a linear discrete-time system in a given polyhedral domain is addressed through the concept of (A, B)-invariance. First, an explicit characterization of (A, B)-invariance of convex ...
Comparative study of LMI-based output feedback spr synthesis for plants with different numbers of inputs and outputs
(2008-09-24)
New Linear Matrix Inequalities (LMI) conditions are proposed for the following problem, called Strictly Positive Real (SPR) synthesis: given a linear time-invariant plant, find a constant output feedback matrix Ko and a ...
Comparative study of LMI-based output feedback spr synthesis for plants with different numbers of inputs and outputs
(2008-09-24)
New Linear Matrix Inequalities (LMI) conditions are proposed for the following problem, called Strictly Positive Real (SPR) synthesis: given a linear time-invariant plant, find a constant output feedback matrix Ko and a ...
Nonchaotic Behavior in Quadratic Three-Dimensional Differential Systems with a Symmetric Jacobian Matrix
(2018-03-01)
In this paper, we give an algebraic criterion to determine the nonchaotic behavior for polynomial differential systems defined in ℝ3 and, using this result, we give a partial positive answer for the conjecture about the ...
On two problems in quaternionic hyperbolic geometry
(Universidade Federal de Minas GeraisBrasilICX - DEPARTAMENTO DE MATEMÁTICAPrograma de Pós-Graduação em MatemáticaUFMG, 2021-09-17)
Neste trabalho consideramos dois problemas em geometria hiperbólica quaterniônica. O primeiro problema é descrever módulos de configurações finitas de pontos no espaço projetivo quaterniônico com relação a ação diagonal ...
Analytic structure of the S-matrix for singular quantum mechanics
(American Institute of Physics, 2015-05)
The analytic structure of the S-matrix of singular quantum mechanics is examined within a multichannel framework, with primary focus on its dependence with respect to a parameter (Ω) that determines the boundary conditions. ...
On switched control design of linear time-invariant systems with polytopic uncertainties
(2013-05-27)
This paper proposes a new switched control design method for some classes of linear time-invariant systems with polytopic uncertainties. This method uses a quadratic Lyapunov function to design the feedback controller gains ...