Results 11 to 20 of about 41,806 (283)

Time fractional exact controllability

open access: yes, 2022
Our purpose is to adapt the Hilbert Uniqueness Method by J.-L. Lions in the case of fractional diffusion-wave equations. The main difficulty is to determine the right shape for the adjoint system, suitable for the procedure of HUM.
Loreti, Paola, Sforza, Daniela
openaire   +2 more sources

Control and Stabilization of the Nonlinear Schroedinger Equation on Rectangles [PDF]

open access: yes, 2010
This paper studies the local exact controllability and the local stabilization of the semilinear Schr\"odinger equation posed on a product of $n$ intervals ($n\ge 1$).
Rosier, Lionel, Zhang, Bing-Yu
core   +5 more sources

On the local exact controllability of micropolar fluids with few controls [PDF]

open access: yes, 2016
In this paper, we study the local exact controllability to special trajectories of the micropolar fluid systems in dimension d = 2 and d = 3. We show that controllability is possible acting only on one velocity.Comment: 25 pages, accepted for publication
Cornilleau, Pierre, Guerrero, Sergio
core   +2 more sources

Nonequivalence of Controllability Properties for Piecewise Linear Markov Switch Processes *

open access: yesESAIM: Proceedings and Surveys, 2017
In this paper we study the exact null-controllability property for a class of controlled PDMP of switch type with switch-dependent, piecewise linear dynamics and multiplicative jumps.
Goreac Dan
doaj   +1 more source

Global exact controllability of bilinear quantum systems on compact graphs and energetic controllability

open access: yes, 2020
The aim of this work is to study the controllability of the bilinear Schr\"odinger equation on compact graphs. In particular, we consider the equation (BSE) $i\partial_t\psi=-\Delta\psi+u(t)B\psi$ in the Hilbert space $L^2(\mathscr{G},\mathbb{C})$, with $
Duca, Alessandro
core   +2 more sources

On partial approximate controllability of semilinear systems

open access: yesCogent Engineering, 2014
In this paper, a sufficient condition for the partial approximate controllability of semilinear deterministic control systems is proved. Generally, the theorems on controllability are formulated for control systems given as a first-order differential ...
Agamirza E. Bashirov   +1 more
doaj   +1 more source

Exact and positive controllability of boundary control systems

open access: yesNetworks & Heterogeneous Media, 2017
Using the semigroup approach to abstract boundary control problems we characterize the space of all exactly reachable states. Moreover, we study the situation when the controls of the system are required to be positive. The abstract results are applied to flows in networks with static as well as dynamic boundary conditions.
ENGEL, KLAUS JOCHEN OTTO   +1 more
openaire   +4 more sources

Exact Null Controllability of a One-Dimensional Wave Equation with a Mixed Boundary

open access: yesMathematics, 2023
In this paper, exact null controllability of one-dimensional wave equations in non-cylindrical domains was discussed. It is different from past papers, as we consider boundary conditions for more complex cases.
Lizhi Cui, Jing Lu
doaj   +1 more source

Internal controllability of the Korteweg-de Vries equation on a bounded domain [PDF]

open access: yes, 2014
This paper is concerned with the control properties of the Korteweg-de Vries (KdV) equation posed on a bounded interval with a distributed control. When the control region is an arbitrary open subdomain, we prove the null controllability of the KdV ...
Filho, Roberto Capistrano   +2 more
core   +6 more sources

Exact tuning of PID controllers in control feedback design [PDF]

open access: yesIET Control Theory & Applications, 2011
Abstract In this paper, we introduce a range of techniques for the exact design of PID controllers for feedback control problems involving requirements on the steady-state performance and standard frequency domain specifications on the stability margins and crossover frequencies.
NTOGRAMATZIDIS L, FERRANTE, AUGUSTO
openaire   +3 more sources

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