Results 11 to 20 of about 9,499 (219)

Approximate Optimal Control for a Parabolic System with Perturbations in the Coefficients on the Half-Axis

open access: yesAxioms, 2022
In this paper, we use the averaging method to find an approximate solution in the optimal control problem of a parabolic system with non-linearity of the form f(t/ε,y) on an infinite time interval.
Olena A. Kapustian   +3 more
doaj   +1 more source

H-Optimal Control in Coefficients for Dirichlet Parabolic Problems

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2010
In the paper the Dirichlet optimal control problem associated with a linear parabolic equation the coefficients of which we take as controls in L1(Ω) has been studied. Since equations of this type can exhibit the Lavrentieff phenomenon and non-uniqueness
I. G. Balanenko, P. I. Kogut
doaj   +1 more source

On existence of optimal controls in coecients for ill-posed nonlinear elliptic Dirichlet boundary value problems with anisotropic p-Laplacian

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2016
We study a Dirichlet optimal control problem for a nonlinear elliptic anisotropic p-Laplace equation with control and state constraints. The matrix-valued coecients we take as controls and in the linear part of dierential operator we consider coecients ...
O. P. Kupenko
doaj   +1 more source

Identification Problem for Nonlinear Gao Beam

open access: yesMathematics, 2020
This paper deals with the identification of coefficients in the nonlinear beam model which was first introduced by D. Y. Gao in 1996. For the identification of coefficients, an optimal control approach is used.
Jana Radová   +2 more
doaj   +1 more source

Robust Control for the Segway with Unknown Control Coefficient and Model Uncertainties [PDF]

open access: yesSensors, 2016
The Segway, which is a popular vehicle nowadays, is an uncertain nonlinear system and has an unknown time-varying control coefficient. Thus, we should consider the unknown time-varying control coefficient and model uncertainties to design the controller.
Kim, Byung, Park, Bong
openaire   +5 more sources

On Optimal Control Problem in Coefficients for Nonlinear Elliptic Variational Inequalities

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2011
In this paper we study an optimal control problem for a nonlinear elliptic variational inequality with generalized solenoidal coefficients which we adopt as controls in L°°(fi). We prove the existence of optimal solution of the stated problem.
O. P. Kogut
doaj   +1 more source

Asymptotic analysis of optimal control problems on the semiaxes for Carathéodory differential inclusions with fast oscillating coefficients

open access: yesNonlinear Analysis, 2023
We consider an optimal control problem for a differential inclusion of the Carathéodory type affine with respect to the control with a coercive cost functional on a semiaxis and with fast oscillating time-dependent coefficients.
Sergey Dashkovskiy   +3 more
doaj   +1 more source

ON APPROXIMATION OF STATE-CONSTRAINED OPTIMAL CONTROL PROBLEM IN COEFFICIENTS FOR p-BIHARMONIC EQUATION

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2018
We study a Dirichlet-Navier optimal design problem for a quasi-linear mono- tone p-biharmonic equation with control and state constraints. The coecient of the p-biharmonic operator we take as a design variable in BV ( )\L1( ).
Peter I. Kogut, Olha P. Kupenko
doaj   +1 more source

Polynomial Stabilization with Bounds on the Controller Coefficients∗∗##

open access: yesIFAC-PapersOnLine, 2015
Let b/a be a strictly proper reduced rational transfer function, with a monic. Consider the problem of designing a controller y/x, with deg(y) < deg(x) < deg(a) – 1 and x monic, subject to lower and upper bounds on the coefficients of y and x, so that the poles of the closed loop transfer function, that is the roots (zeros) of ax + by, are, if possible,
Eaton, J.   +3 more
openaire   +2 more sources

On relaxation of state-constrained optimal control problem in coefficients for biharmonic equation

open access: yesVìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 2015
We study a Dirichlet optimal control problem for biharmonic equation withcontrol and state constraints. The coecient of the biharmonic operator, the weightu, we take as a control in L1(Ω).
P. I. Kogut, L. V. Voloshko
doaj   +1 more source

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