Results 1 to 10 of about 328 (79)

On Existence of Optimal Controls in Coecients for Ill-Posed Nonlinear Elliptic Dirichlet Boundary Value Problems With Anisotropic p-Laplacian

open access: yesJournal of Optimization, Differential Equations and Their Applications, 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 to be unbounded skew-symmetric matrix.
Olha P Kupenko
exaly   +4 more sources

Shape Stability of Optimal Control Problems in Coefficients for Coupled System of Hammerstein Type

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2014
In this paper we consider an optimal control problem (OCP) for the coupledsystem of a nonlinear monotone Dirichlet problem with matrix-valued L∞(Ω;RN×N)-controls in coecients and a nonlinear equation of Hammerstein type, where solution nonlinearly ...
Olha P Kupenko, P I Kogut
exaly   +3 more sources

On Unbounded Optimal Controls in Coefficients for Ill-Posed Elliptic Dirichlet Boundary Value Problems

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2014
We consider an optimal control problem associated to Dirichlet boundary valueproblem for linear elliptic equations on a bounded domain Ω. We take the matrixvalued coecients A(x) of such system as a control in L1(Ω;RN RN). One of the important features of
P I Kogut
exaly   +3 more sources

The Necessary Optimality Conditions to One Class Optimal Control Problems With Non-Variational Solutions

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2016
The necessary optimality conditions to one class optimal control problems for parabolic equations with unbounded coecients were developed in case when their solutions have non-variational character.
S. O. Gorbonos
exaly   +3 more sources

On Henig Regularization of State-Constrained Optimal Control Problem for the p-Laplace Equation

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2015
We study a Dirichlet optimal control problem for a quasilinear monotone p-Laplace equation with control and state constraints. The coefficient of the p-Laplacian, the weight u, we take as a control in L1(Ω).
Olha P Kupenko, P I Kogut
exaly   +3 more sources

On Relaxation of State-Constrained Optimal Control Problem in Coefficients for Biharmonic Equation

open access: yesJournal of Optimization, Differential Equations and Their Applications, 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
exaly   +3 more sources

Optimal Control for a Degrated Parabolic-Hyperbolic Equation With Semi-Dened Quality Criteria

open access: yesJournal of Optimization, Differential Equations and Their Applications, 2016
In this paper we study the optimal control problem for a degrated parabolic-hyperbolic equation with variable coecients for the semi-dened quality criteria.
Ivan Pyshnograiev
exaly   +3 more sources

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

Flow injection analysis of nitrogen dioxide using a galvanic detector

open access: yesJournal of Analytical Methods in Chemistry, Volume 20, Issue 1, Page 17-21, 1998., 1998
A flow injection configuration (FIA) based on a galvanic detector for the determination of nitrogen dioxide is described. The gaseous sample is directly injected into a gaseous carrier. The sample is transported toward the detector. The steady state measurements are not required to obtain the reproducible peak signals.
Shan-jun Liu   +3 more
wiley   +1 more source

A stability result for parameter identification problems in nonlinear parabolic problems

open access: yesInternational Journal of Mathematics and Mathematical Sciences, Volume 18, Issue 1, Page 25-32, 1995., 1995
A sequence of identification problems of coefficients in the parabolic equation with nonlinear boundary conditions is considered. The parameter (index of an element of the sequence) appears in the cost functionals as well as boundary data. It is proved that the optimal solutions exist and that under some continuous convergence of the cost functionals ...
Stanislaw Migórski
wiley   +1 more source

Home - About - Disclaimer - Privacy