Results 21 to 30 of about 9,499 (219)

On the problem of optimal control in the coefficients of an elliptic equation

Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2017
In this paper we consider the optimal control problem for linear elliptic equations of the second order. Control functions are included in the coefficients of the equation for the state, including the coefficients of the highest derivatives.
Rafig K Tagiev, Rena S Kasimova
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SHAPE STABILITY OF OPTIMAL CONTROL PROBLEMS IN COEFFICIENTS FOR COUPLED SYSTEM OF HAMMERSTEIN TYPE

Vìsnik Dnìpropetrovsʹkogo Unìversitetu: Serìâ Modelûvannâ, 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 ...
P. I. Kogut, O. P. Kupenko
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On an Optimal -Control Problem in Coefficients for Linear Elliptic Variational Inequality

Abstract and Applied Analysis, 2013
We consider optimal control problems for linear degenerate elliptic variational inequalities with homogeneous Dirichlet boundary conditions. We take the matrix-valued coefficients in the main part of the elliptic operator as controls in .
Olha P. Kupenko, Rosanna Manzo
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The Hydrodynamic Coefficient Analysis and Motion Control of the Lingyun Moveable Lander

Geofluids, 2021
A moveable lander has the advantages of low cost and strong controllability and is gradually becoming an effective autonomous ocean observation platform.
Guoxin Li, Shaowei Zhang
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Control in the coefficients of an obstacle problem

Mathematical Control and Related Fields
In this work, we consider optimality conditions of an optimal control problem governed by an obstacle problem. Here, we focus on introducing a, matrix valued, control variable as the coefficients of the obstacle problem. As it is well known, obstacle problems can be formulated as a complementarity system and consequently the associated solution ...
Simon, Nicolai, Wollner, Winnifried
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Synthesis of Control and State Observer for Weakly Nonlinear Systems Based on the Pseudo-Linearization Technique

Моделирование и анализ информационных систем, 2017
In this paper, an approach to the construction of nonlinear output tracking control on a finite time interval for a class of weakly nonlinear systems with state-dependent coefficients is considered.
Dmitry A. Makarov
doaj   +1 more source

Synthesis of low‐coefficient sensitivity controllers with respect to multiplicative controller coefficient variations

IET Control Theory & Applications, 2015
In this study, a set of optimal state‐space descriptions with minimum H ∞ ‐sensitivity to multiplicative controller coefficient variations and a desirable disturbance attenuation level is synthesised for discrete‐time linear systems.
Xiang‐Gui Guo, Qiang Gao, Zhe Xu
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Approximation of an Optimal BV -Control Problem in the Coefficient for the p(x)-Laplace Equation

Journal of Optimization, Differential Equations and Their Applications
We study a Dirichlet optimal control problem for a quasilinear monotone elliptic equation with the so-called weighted p(x)-Laplace operator. The coefficient of the p(x)-Laplacian, the weight u, we take as a control in BV (Ω) ∩ L∞(Ω).
Ismail Aydin, Peter Kogut
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Neutronic analysis of control rod effect on safety parameters in Tehran Research Reactor

Nuclear Engineering and Technology, 2018
The measurement and calculation of neutronic parameters in nuclear research reactors has an important influence on control and safety of the nuclear reactor. The power peaking factors, reactivity coefficients and kinetic parameters are the most important
Mina Torabi, A. Lashkari, Seyed Farhad Masoudi, Somayeh Bagheri   +3 more
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Light Control of the Diffusion Coefficient of Active Fluids [PDF]

Journal of Fluids Engineering, 2020
Abstract Active fluids refer to the fluids that contain self-propelled particles such as bacteria or microalgae, whose properties differ fundamentally from the passive fluids. Such particles often exhibit an intermittent motion, with high-motility “run” periods broken by low-motility “tumble” periods.
Vourc'h, Thomas, Léopoldès, Julien, Peerhossaini, Hassan   +2 more
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