Results 21 to 30 of about 328 (44)

Controllability and observability for a class of time-varying impulsive systems on time scales

, 2011
. The aim of this paper is to study the controllability and ob-servability for a class of linear time-varying impulsive control systems on timescales. Sufficient and necessary conditions for state controllability and stateobservability of such systems are ...
V. Lupulescu, A. Younus
semanticscholar   +1 more source

Null Controllability of the Structurally Damped Wave Equation on the Two-Dimensional Torus

SIAM Journal of Control and Optimization, 2019
We investigate the null controllability of the wave equation with a Kelvin-Voigt damping on the two-dimensional torus T 2. We consider a distributed control supported in a moving domain ω(t) with a uniform motion at a constant velocity c = (1, ζ).
P. Guzmán, L. Rosier
semanticscholar   +1 more source

Empirical balanced truncation of nonlinear systems

, 2006
Novel constructions of empirical controllability and observability gramians for nonlinear systems for subsequent use in a balanced truncation style of model reduction are proposed.
Condon, Marissa, Ivanov, Rossen I.
core   +1 more source

On the Existence of a Kazantzis-Kravaris/Luenberger Observer [PDF]

, 2006
We state sufficient conditions for the existence, on a given open set, of the extension, to nonlinear systems, of the Luenberger observer as it has been proposed by Kazantzis and Kravaris.
Boothby William, Federer Herbert, Laurent Praly, Rudin Walter, Vincent Andrieu   +4 more
core   +5 more sources

Observability of rectangular membranes and plates on small sets

, 2013
Since the works of Haraux and Jaffard we know that rectangular plates may be observed by subregions not satisfying the geometrical control condition. We improve these results by observing only on an arbitrarily short segment inside the domain.
Komornik, Vilmos, Loreti, Paola
core   +1 more source

Observability on the classes of non-nilpotent solvable three-dimensional Lie groups

Open Mathematics
In control theory, researchers need to understand a system’s local and global behaviors in relation to its initial conditions. When discussing observability, the main focus is on the ability to analyze the system using an output space defined by an ...
Ayala Victor, Cavalheiro Thiago Matheus, Santana Alexandre J.   +2 more
doaj   +1 more source

Backward Linear Control Systems on Time Scales

, 2010
We show how a linear control systems theory for the backward nabla differential operator on an arbitrary time scale can be obtained via Caputo's duality. More precisely, we consider linear control systems with outputs defined with respect to the backward
Pawluszewicz, Ewa, Torres, Delfim F. M.
core   +1 more source

Logarithmic stability in determining two coefficients in a dissipative wave equation. Extensions to clamped Euler-Bernoulli beam and heat equations

, 2015
We are concerned with the inverse problem of determining both the potential and the damping coefficient in a dissipative wave equation from boundary measurements. We establish stability estimates of logarithmic type when the measurements are given by the
Ammari, Kaïs, Choulli, Mourad
core   +1 more source

On the Dynamics of Dengue Virus type 2 with Residence Times and Vertical Transmission

, 2016
A two-patch mathematical model of Dengue virus type 2 (DENV-2) that accounts for vectors' vertical transmission and between patches human dispersal is introduced. Dispersal is modeled via a Lagrangian approach.
Bichara, Derdei, Castillo-Chavez, Carlos, Holechek, Susan A., Murillo, Anarina L., Velazquez-Castro, Jorge   +4 more
core   +2 more sources

Comments on: "Continuous initial observability of nonlinear delay parabolic equations" by Choi, Kwung and Park [PDF]

, 2004
International audienceIt is shown that the assumptions of the main result of the cited paper can never be ...
Rabah, Rabah
core   +2 more sources