Results 51 to 60 of about 31,809 (190)

Approximate controllability of the coupled degenerate system with two boundary controls

open access: yesBoundary Value Problems, 2017
In this paper, we investigate the approximate controllability of the coupled system with boundary degeneracy. The control functions act on the degenerate boundary. We prove the Carleman estimate and the unique continuation of the adjoint system.
Runmei Du
doaj   +1 more source

Controllability of Semilinear Stochastic Generalized Systems in Hilbert Spaces by GE-Evolution Operator Method

open access: yesMathematics, 2023
Controllability is a basic problem in the study of stochastic generalized systems. Compared with ordinary stochastic systems, the structure of stochastic singular systems is more complex, and it is necessary to study the controllability of stochastic ...
Zhaoqiang Ge
doaj   +1 more source

Some controllability results for linear viscoelastic fluids [PDF]

open access: yes, 2012
We analyze the controllability properties of systems which provide a description, at first approximation, of a kind of viscoelastic fluid. We consider linear Maxwell fluids.
Boldrini, José Luiz   +3 more
core   +1 more source

Approximate controllability of second-order impulsive neutral stochastic differential equations with state-dependent delay and Poisson jumps

open access: yesJournal of Inequalities and Applications, 2023
We consider the approximate controllability for a class of second-order impulsive neutral stochastic differential equations with state-dependent delay and Poisson jumps in a real separable Hilbert space.
Hao Huang, Zheng Wu, Xiaofeng Su
doaj   +1 more source

Deterministic Approximation for Stochastic Control Problems [PDF]

open access: yesSIAM Journal on Control and Optimization, 1996
A stochastic control problem with a convex control function is considered. It is known that one of the possible approaches to such type of problems is to replace the underlying processes by some simpler ones. The aim of the paper is to deal with the case when the approximating model can be a deterministic one (``fluid approximation'').
Liptser, R. Sh.   +2 more
openaire   +2 more sources

Approximate Controllability of Fractional Neutral Evolution Equations in Banach Spaces

open access: yesAbstract and Applied Analysis, 2013
We discuss the approximate controllability of semilinear fractional neutral differential systems with infinite delay under the assumptions that the corresponding linear system is approximately controllable.
N. I. Mahmudov
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

Approximate controllability of the Schr\"{o}dinger Equation with a polarizability term in higher Sobolev norms [PDF]

open access: yes, 2014
This analysis is concerned with the controllability of quantum systems in the case where the standard dipolar approximation, involving the permanent dipole moment of the system, is corrected with a polarizability term, involving the field induced dipole ...
Boussaid, Nabile   +2 more
core   +2 more sources

Approximate controllability of fractional nonlocal evolution equations with multiple delays

open access: yesAdvances in Difference Equations, 2017
This paper deals with the existence and approximate controllability for a class of fractional nonlocal control systems governed by abstract fractional evolution equations with multiple delays.
He Yang, Elyasa Ibrahim
doaj   +1 more source

Approximate controllability of Atangana-Baleanu fractional neutral delay integrodifferential stochastic systems with nonlocal conditions☆

open access: yesAin Shams Engineering Journal, 2023
The study of approximate controllability results ensures the essential conditions required for a solution. Keeping the importance of the study, we initiate the existence and approximate controllability an Atangana-Baleanu-Caputo (ABC)-fractional order ...
Yong-Ki Ma   +5 more
doaj   +1 more source

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