Results 71 to 80 of about 188 (113)

A new estimation method for controllability of semilinear impulsive integro-differential systems

, 2018
Using a comparison result, the measure of noncompactness and fixed point methods, we establish a compactness parameter estimator for a class of well known impulsive integro-differential control systems. Therefore, without the assumption on compactness of
Haiyong Qin
semanticscholar   +1 more source

Invariance of the Approximately Reachable Set Under Nonlinear Perturbations [PDF]

, 2007
: We consider nonlinear perturbations of control systems with linear dynamics and seek to analyze whether the approximately reachable set may be left unchanged by this perturbation.
Koichiro Naito, Thomas I. Seidman
core  

Exact controllability of fractional neutral integro-differential systems with state-dependent delay in Banach spaces

Analele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2016
In this manuscript, we have a tendency to execute Banach contraction fixed point theorem combined with resolvent operator to analyze the exact controllability results for fractional neutral integro-differential systems (FNIDS) with state-dependent delay (
Kailasavalli S., Baleanu D., Suganya S., Mallika Arjunan M.   +3 more
doaj   +1 more source

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 [PDF]

, 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).
Guzmán, Patricio, Rosier, Lionel
core   +1 more source

Carleman estimates for singular parabolic equations with interior degeneracy and non-smooth coefficients

Advances in Nonlinear Analysis, 2017
We establish Carleman estimates for singular/degenerate parabolic Dirichlet problems with degeneracy and singularity occurring in the interior of the spatial domain.
Fragnelli Genni, Mugnai Dimitri
doaj   +1 more source

Controllability problem for fractional integrodifferential evolution systems of mixed type with the measure of noncompactness

, 2014
We consider the controllability problem for a class of fractional evolution systems of mixed type in an infinite dimensional Banach space. The existence of mild solutions and controllability results are discussed by a new estimation technique of the ...
Haiyong Qin, Jian-wei Liu, Xin Zuo
semanticscholar   +1 more source

Control norms for large control times [PDF]

, 1998
. A control system of the second order in time with control u = u(t) 2 L2([0; T];U) is considered. If the system is controllable in a strong sense and uT is the control steering the system to the rest at time T, then the L2{norm of uT decreases as 1= p T
Sergei Ivanov, Ivanov, Sergei
core  

Controllability and Observability of Heterogeneous Networked Systems With Non-Uniform Node Dimensions and Distinct Inner-Coupling Matrices

IEEE Open Journal of Control Systems
In this paper, controllability and observability of a heterogeneous networked system with Linear Time Invariant (LTI) nodal systems having Multiple-Inputs and Multiple-Outputs (MIMO) aligned in a weighted and directed network topology are studied.
Aleena Thomas, Abhijith Ajayakumar, Raju K. George   +2 more
doaj   +1 more source

An analysis on the approximate controllability of neutral impulsive stochastic integrodifferential inclusions via resolvent operators. [PDF]

Heliyon, 2023
Ma YK, Pradeesh J, Shukla A, Vijayakumar V, Jothimani K.   +4 more
europepmc   +1 more source