Results 61 to 70 of about 31,809 (190)

Approximate controllability of a second-order neutral stochastic differential equation with state dependent delay

open access: yesNonlinear Analysis, 2016
In this paper, the existence and uniqueness of mild solution is initially obtained by use of measure of noncompactness and simple growth conditions. Then the conditions for approximate controllability are investigated for the distributed second-order ...
Sanjukta Das   +2 more
doaj   +1 more source

A note on existence and approximate controllability outcomes of Atangana–Baleanu neutral fractional stochastic hemivariational inequality

open access: yesResults in Physics, 2022
This article is primarily targeting the approximate controllability results of Atangana–Baleanu neutral fractional stochastic hemivariational inequality.
C. Dineshkumar   +7 more
doaj   +1 more source

Results on partial approximate controllability of fractional control systems in Hilbert spaces with conformable derivatives

open access: yesAIP Advances
This paper investigates partial approximate controllability of fractional linear and semi-linear control systems involving the conformable derivative.
Maher Jneid
doaj   +1 more source

Controlled approximation and a characterization of the local approximation order [PDF]

open access: yesProceedings of the American Mathematical Society, 1985
The local approximation order from a scale ( S h ) ({S_h}) of approximating functions on R m {{\mathbf {R}}^m} is characterized in terms of the linear span (and its ...
de Boor, C., Jia, R.-Q.
openaire   +1 more source

Approximate Controllability for Time-Dependent Impulsive Neutral Stochastic Partial Differential Equations with Fractional Brownian Motion and Memory

open access: yesUniversal Journal of Mathematics and Applications, 2020
In this manuscript, we investigate the approximate controllability for time-dependent impulsive neutral stochastic partial differential equations with fractional Brownian motion and memory in Hilbert space.
Elsayed Elsayed   +3 more
doaj   +1 more source

A survey on fuzzy fractional differential and optimal control nonlocal evolution equations

open access: yes, 2017
We survey some representative results on fuzzy fractional differential equations, controllability, approximate controllability, optimal control, and optimal feedback control for several different kinds of fractional evolution equations.
Agarwal, Ravi P.   +4 more
core   +1 more source

Greedy controllability of finite dimensional linear systems

open access: yes, 2016
We analyse the problem of controllability for parameter-dependent linear finite-dimensional systems. The goal is to identify the most distinguished realisations of those parameters so to better describe or approximate the whole range of controls.
Lazar, Martin, Zuazua, Enrique
core   +1 more source

Invariance Entropy of Hyperbolic Control Sets [PDF]

open access: yes, 2014
In this paper, we improve the known estimates for the invariance entropy of a nonlinear control system. For sets of complete approximate controllability we derive an upper bound in terms of Lyapunov exponents and for uniformly hyperbolic sets we obtain a
Da Silva, Adriano, Kawan, Christoph
core  

Algebraic Invariance Conditions in the Study of Approximate (Null-)Controllability of Markov Switch Processes

open access: yes, 2015
We aim at studying approximate null-controllability properties of a particular class of piecewise linear Markov processes (Markovian switch systems). The criteria are given in terms of algebraic invariance and are easily computable.
Goreac, Dan, Martinez, Miguel
core   +3 more sources

Approximate Controllability of Semilinear Neutral Stochastic Integrodifferential Inclusions with Infinite Delay

open access: yesDiscrete Dynamics in Nature and Society, 2015
The approximate controllability of semilinear neutral stochastic integrodifferential inclusions with infinite delay in an abstract space is studied. Sufficient conditions are established for the approximate controllability.
Meili Li, Man Liu
doaj   +1 more source

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