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Wyświetlanie 1-10 z 14
Tytuł:
The nonsmooth maximum principle
Autorzy:
Clarke, F. H.
Pinho, M. R. de
Powiązania:
https://bibliotekanauki.pl/articles/970885.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
optimal control
Pontryagin maximum principle
nonsmooth analysis
Opis:
We present a brief survey of the nonsmooth maximum principle of optimal control, focusing, in particular, upon the alternative forms of the adjoint equation. We obtain a new version of the theorem that asserts for the first time the full Weierstrass condition together with the Euler form of the adjoint equation, thereby extending a result of de Pinho and Vinter. The new theorem also features stratified hypotheses and conclusions. Two examples illustrate its use.
Źródło:
Control and Cybernetics; 2009, 38, 4A; 1151-1167
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Extremals in the problem of minimum time obstacle avoidance for a 2D double integrator system
Autorzy:
Osmolovskii, N. P.
Figura, A.
Koska, M.
Wojtowicz, M.
Powiązania:
https://bibliotekanauki.pl/articles/206001.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
necessary optimality condition
state constraint
optimal control
bang-bang control
Pontryagin principle
Opis:
This paper provides an analysis of time optimal control problem of motion of a material point in the plane outside the given circle, without friction. The point is controlled by a force whose absolute value is limited by one. The closure of exterior of the circle plays the role of the state constraint. The analysis of the problem is based on the minimum principle.
Źródło:
Control and Cybernetics; 2015, 44, 2; 185-209
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of maximum principle to optimization of production and storage costs
Autorzy:
Popescu, Liviu
Dimitrov, Ramona
Powiązania:
https://bibliotekanauki.pl/articles/2083467.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
optimal control
Pontryagin Maximum Principle
controllability
production
storage
Opis:
A problem of optimization for production and storge costs is studied. The problem consists in manufacture of n types of products, with some given restrictions, so that the total production and storage costs are minimal. The mathematical model is built using the framework of driftless control affine systems. Controllability is studied using Lie geometric methods and the optimal solution is obtained with Pontryagin Maximum Principle. It is proved that the economical system is not controllable, in the sense that we can only produce a certain quantity of products. Finally, some numerical examples are given with graphical representation.
Źródło:
Archives of Control Sciences; 2021, 31, 4; 865-881
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A simple trolley-like model in the presence of a nonlinear friction and a bounded fuel expenditure
Autorzy:
Dmitruk, Andrei
Samylovskiy, Ivan
Powiązania:
https://bibliotekanauki.pl/articles/729308.pdf
Data publikacji:
2013
Wydawca:
Uniwersytet Zielonogórski. Wydział Matematyki, Informatyki i Ekonometrii
Tematy:
optimal control problem
Pontryagin Maximum Principle
extremals
singular arcs
Opis:
We consider a problem of maximization of the distance traveled by a material point in the presence of a nonlinear friction under a bounded thrust and fuel expenditure. Using the maximum principle we obtain the form of optimal control and establish conditions under which it contains a singular subarc. This problem seems to be the simplest one having a mechanical sense in which singular subarcs appear in a nontrivial way.
Źródło:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization; 2013, 33, 2; 135-147
1509-9407
Pojawia się w:
Discussiones Mathematicae, Differential Inclusions, Control and Optimization
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimality conditions for a class of optimal boundary control problems with quasilinear elliptic equations
Autorzy:
Casas, E.
Dhamo, V.
Powiązania:
https://bibliotekanauki.pl/articles/206408.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
optimal control
Neumann boundary control
quasi-linear elliptic equation
Pontryagin principle
second order optimality conditions
Opis:
First- and second-order optimality conditions are established for the boundary optimal control of quasilinear elliptic equations with pointwise constraints on the control. The theory is developed for Neumann controls in polygonal domains of dimension two. For the derivation of second-order sufficient optimality conditions, which is the main goal of this paper, the regularity of the solutions to the state equation and its linearization is studied in detail. Moreover, a Pontryagin principle is proved. The main difficulty in the analysis of these problems is the nonmonotone character of the state equation.
Źródło:
Control and Cybernetics; 2011, 40, 2; 457-490
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Hamiltonian form of the maximum principle
Autorzy:
Gamkrelidze, R. V.
Powiązania:
https://bibliotekanauki.pl/articles/970916.pdf
Data publikacji:
2009
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
optimal control
Pontryagin's maximum principle
Hamiltonian form of the maximum principle
Opis:
According to the goal of the Conference in Bedlewo, dedicated to the 50-th anniversary of Optimal Control theory, and considering that the 2008 year marked the centennial birthday of Lev Semenovich Pontryagin, I decided to devote my talk to a brief account on the discovery of the maximum principle and to an analysis of its basic feature, the Hamiltonian format.
Źródło:
Control and Cybernetics; 2009, 38, 4A; 959-971
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optymalne stopy inwestycji w N-kapitałowym modelu wzrostu gospodarczego
Optimal Investment Rates in an N-Capital Growth Model
Autorzy:
Tokarski, Tomasz
Powiązania:
https://bibliotekanauki.pl/articles/574446.pdf
Data publikacji:
2007-09-30
Wydawca:
Szkoła Główna Handlowa w Warszawie. Kolegium Analiz Ekonomicznych
Tematy:
investment rates
growth model
Pontryagin’s maximum principle
Opis:
The paper aims to determine an optimal structure of investment rates under an N-capital growth model. This model is a combination and expansion of models developed by Solow [1956]; Mankiw, Romer, Weil [1992]; Nonneman, Vanhoudt [1996]; and Tokarski [1996; 2000; 2003; 2005], with elements of optimal control models by Ramsey [1928], Lucas [1988] and Romer [1986, 1990]. The economic growth model described in the paper is based on the following assumptions: - The stream of products generated in the economy is influenced by a finite N amount of capital, labor and technology resources; it is also assumed that labor and technology resources grow according to certain exogenous growth rates; - The increase of each of the analyzed capital stocks is the difference between investment in this capital and its depreciation; these assumptions refer to the neoclassical growth models developed by Solow, Mankiw-Romer-Weil, and Nonneman-Vanhoudt; - A typical rationally behaving consumer (much as in the case of endogenous growth models developed by Lucas and Romer) seeks a long-term investment rate structure that will maximize the usefulness of consumption in an infinite period of time; - Additionally, an assumption is made that the macroeconomic production function in the described growth model does not have to be characterized by a constant scale effect (as earlier noted by Tokarski [1996, 2003 or 2005]). The model described by the author is solved using Pontryagin’s maximum principle.
Źródło:
Gospodarka Narodowa. The Polish Journal of Economics; 2007, 218, 9; 1-18
2300-5238
Pojawia się w:
Gospodarka Narodowa. The Polish Journal of Economics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
On the optimal control problem for two regions’ macroeconomic model
Autorzy:
Surkov, P. G.
Powiązania:
https://bibliotekanauki.pl/articles/229669.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
integrated assessment model for evaluating greenhouse gases reduction policies
optimal control
Pontryagin’s maximum principle
Opis:
In this paper we consider a model of joint economic growth of two regions. This model bases on the classical Kobb-Douglas function and is described by a nonlinear system of differential equations. The interaction between regions is carried out by changing the balance of trade. The optimal control problem for this system is posed and the Pontryagin maximum principle is used for analysis the problem. The maximized functional represents the global welfare of regions. The numeric solution of the optimal control problem for particular regions is found. The used parameters was obtained from the basic scenario of the MERGE
Źródło:
Archives of Control Sciences; 2015, 25, 4; 417-427
1230-2384
Pojawia się w:
Archives of Control Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Network optimality conditions
Autorzy:
Osmolovskii, Nikolai P.
Qian, Meizhi
Sokołowski, Jan
Powiązania:
https://bibliotekanauki.pl/articles/31343935.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
network
optimal control problem
weak local minimum
Pontryagin’s maximum principle
critical cone
quadratic form
second order optimality conditions
Riccati equation
Opis:
Optimality conditions for optimal control problems arising in network modeling are discussed. We confine ourselves to the steady state network models. Therefore, we consider only control systems described by ordinary differential equations. First, we derive optimality conditions for the nonlinear problem for a single beam. These conditions are formulated in terms of the local Pontryagin maximum principle and the matrix Riccati equation. Then, the optimality conditions for the control problem for networks posed on an arbitrary planar graph are discussed. This problem has a set of independent variables xi varying within their intervals [0, li], associated with the corresponding beams at network edges. The lengths li of intervals are not specified and must be determined. So, the optimization problem is non-standard, it is a combination of control and design of networks. However, using a linear change of the independent variables, it can be reduced to a standard one, and we show this. Two simple numerical examples for the single-beam problem are considered.
Źródło:
Control and Cybernetics; 2023, 52, 2; 129-180
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A second-order sufficient condition for a weak local minimum in an optimal control problem with an inequality control constraint
Autorzy:
Osmolovskii, Nikolai P.
Powiązania:
https://bibliotekanauki.pl/articles/2183496.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Instytut Badań Systemowych PAN
Tematy:
critical cone
quadratic form
first order tangent
second order tangent
second order optimality conditions
weak local minimum
inequality control constraint
Pontryagin’s maximum principle
Opis:
This paper is devoted to a sufficient second-order condition for a weak local minimum in a simple optimal control problem with one control constraint G(u) ≤ 0, given by a C2-function. A similar second-order condition was obtained earlier by the author for a strong minimum in a much more general problem. In the present paper, we would like to take a narrower perspective than before and thus provide shorter and simpler proofs. In addition, the paper uses the first and second order tangents to the set U, defined by the inequality G(u) ≤ 0. The main difficulty of the proof, clearly shown in the paper, refers to the set, where the gradient Hu of the Hamiltonian is small, but the condition of quadratic growth of the Hamiltonian is satisfied. The paper can be valuable for self-explanation and provides a basis for extensions.
Źródło:
Control and Cybernetics; 2022, 51, 2; 151--169
0324-8569
Pojawia się w:
Control and Cybernetics
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 14

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