Results 21 to 30 of about 41,806 (283)

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

Semi-exact control functionals from Sard’s method [PDF]

open access: yesBiometrika, 2021
Summary A novel control variate technique is proposed for the post-processing of Markov chain Monte Carlo output, based on both Stein’s method and an approach to numerical integration due to Sard. The resulting estimators of posterior expected quantities of interest are proven to be polynomially exact in the Gaussian context, while ...
South, L. F.   +4 more
openaire   +4 more sources

Finite Time and Exact Time Controllability on Compact Manifolds [PDF]

open access: yes, 2010
It is first shown that a smooth controllable system on a compact manifold is finite time controllable. The technique of proof is close to the one of Sussmann's orbit theorem, and no rank condition is required.
Jouan, Philippe
core   +2 more sources

Exact null controllability, complete stabilizability and continuous final observability of neutral type systems

open access: yesInternational Journal of Applied Mathematics and Computer Science, 2017
For abstract linear systems in Hilbert spaces we revisit the problems of exact controllability and complete stabilizability (stabilizability with an arbitrary decay rate), the latter property being related to exact null controllability.
Rabah Rabah   +2 more
doaj   +1 more source

Exact controllability of fractional order evolution equations in Banach spaces

open access: yesAdvances in Difference Equations, 2018
In this paper, we deal with the exact controllability of a class of fractional evolution equations with time-varying delay. Under the nonlocal condition, the exact controllability of this system is established by applying a Leray–Schauder alternative ...
Yi Cheng, Shanshan Gao, Yuhu Wu
doaj   +1 more source

Remarks on local controllability for the Boussinesq system with Navier boundary condition

open access: yesComptes Rendus. Mathématique, 2020
This note deals with the local exact controllability to a particular class of trajectories for the Boussinesq system with nonlinear Navier–slip boundary conditions and internal controls having vanishing components.
Montoya, Cristhian
doaj   +1 more source

Global exponential stabilisation for the Burgers equation with localised control [PDF]

open access: yes, 2016
We consider the 1D viscous Burgers equation with a control localised in a finite interval. It is proved that, for any $\varepsilon>0$, one can find a time $T$ of order $\log\varepsilon^{-1}$ such that any initial state can be steered to the $\varepsilon$-
Shirikyan, Armen
core   +4 more sources

Simultaneous local exact controllability of 1D bilinear Schr\"odinger equations [PDF]

open access: yes, 2013
We consider N independent quantum particles, in an infinite square potential well coupled to an external laser field. These particles are modelled by a system of linear Schr\"odinger equations on a bounded interval.
Morancey, Morgan
core   +3 more sources

Study on the controllability of Hilfer fractional differential system with and without impulsive conditions via infinite delay

open access: yesNonlinear Analysis, 2023
In this manuscript, we investigate the controllability of two different kinds of Hilfer fractional differential equations with an almost sectorial operator and infinite delay.
Chandrabose Sindhu Varun Bose   +4 more
doaj   +1 more source

Exact observability and controllability for linear neutral type systems [PDF]

open access: yes, 2015
The problem of exact observability is analyzed for a wide class of neutral type systems by an infinite dimensional approach. The duality with the exact controllabil-ity problem is the main tool.
Rabah, Rabah, Sklyar, Grigory
core   +4 more sources

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