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Optimal control problem and maximum principle for fractional order cooperative systems. (English) Zbl 1463.49005
Summary: In this paper, by using the classical control theory, the optimal control problem for fractional order cooperative system governed by Schrödinger operator is considered. The fractional time derivative is considered in a Riemann-Liouville and Caputo senses. The maximum principle for this system is discussed. We first study by using the Lax-Milgram Theorem, the existence and the uniqueness of the solution of the fractional differential system in a Hilbert space. Then we show that the considered optimal control problem has a unique solution. The performance index of a (FOCP) is considered as a function of both state and control variables, and the dynamic constraints are expressed by a Partial Fractional Differential Equation (PFDE). Finally, we impose some constraints on the boundary control. Interpreting the Euler-Lagrange first order optimality condition with an adjoint problem defined by means of right fractional Caputo derivative, we obtain an optimality system for the optimal control. Some examples are analyzed in details.
MSC:
49J20 Existence theories for optimal control problems involving partial differential equations
35R11 Fractional partial differential equations
49J15 Existence theories for optimal control problems involving ordinary differential equations
49K20 Optimality conditions for problems involving partial differential equations
93C20 Control/observation systems governed by partial differential equations
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