Abstract
This paper considers the design problem of a stochastic linear-quadratic controller over an infinite time-horizon with dynamic scaling of the coefficients in the state equation and the cost criterion. Dynamic scaling means multiplying the coefficients by a positive time-varying function. The optimality criteria used are extensions of the long-term average cost and pathwise long-term average cost. The integral of the scaling function is applied to normalize the performance indices. It is shown that, the optimal control law is time-invariant and can be obtained through a steady-state optimal strategy known for the autonomous system.
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This study was carried out within the research project at Central Economics and Mathematics Institute, Russian Academy of Sciences.
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Translated by A. Mazurov
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Palamarchuk, E.S. Time Invariance of Optimal Control in a Stochastic Linear Controller Design with Dynamic Scaling of Coefficients. J. Comput. Syst. Sci. Int. 60, 202–212 (2021). https://doi.org/10.1134/S1064230721020106
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DOI: https://doi.org/10.1134/S1064230721020106