Results 11 to 20 of about 4,094 (263)

Mean Square Finite-Approximate Controllability of Semilinear Stochastic Differential Equations with Non-Lipschitz Coefficients

open access: yesMathematics, 2023
In this paper, we present a study on mean square approximate controllability and finite-dimensional mean exact controllability for the system governed by linear/semilinear infinite-dimensional stochastic evolution equations.
Nazim I. Mahmudov
doaj   +1 more source

Exact Controllability for String with Attached Masses [PDF]

open access: yesSIAM Journal on Control and Optimization, 2018
We consider the problem of boundary control for a vibrating string with $N$ interior point masses. We assume the control is at the left end, and the string is fixed at the right end. Singularities in waves are "smoothed" out to one order as they cross a point mass. We characterize the reachable set for a $L^2$ control. The control problem is reduced to
Sergei Avdonin, Julian Edward
openaire   +2 more sources

On controllability of fractional positive continuous-time linear systems with delay [PDF]

open access: yesArchives of Control Sciences, 2021
In the paper positive fractional continuous-time linear systems are considered. Positive fractional systems without delays and positive fractional systems with a single delay in control are studied.
Beata Sikora, Nikola Matlok
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   +5 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

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 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

Exact controllability of multiplex networks

open access: yesNew Journal of Physics, 2014
We develop a general framework to analyze the controllability of multiplex networks using multiple-relation networks and multiple-layer networks with interlayer couplings as two classes of prototypical systems.
Zhengzhong Yuan   +4 more
doaj   +1 more source

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

Exact Controllability Results for Sobolev-Type Hilfer Fractional Neutral Delay Volterra-Fredholm Integro-Differential Systems

open access: yesFractal and Fractional, 2022
This manuscript mainly focuses on the exact controllability of Sobolev-type Hilfer fractional neutral delay Volterra-Fredholm integro-differential systems.
Velusamy Vijayakumar   +2 more
doaj   +1 more source

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