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arXiv 1509.02100math.OC
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平均场随机线性二次最优控制问题:开环解

Mean-Field Stochastic Linear Quadratic Optimal Control Problems: Open-Loop Solvabilities

Jingrui Sun

摘要:

研究了一类确定性系数的平均场线性二次型(简称LQ)最优控制问题。结果表明,凸的成本功能是必要的有限性的平均场LQ问题,而一致凸的成本功能是足够的开环可解性的问题。通过考虑一族一致凸的代价泛函,得到了问题有限性的一个刻画,并构造了一个极小化序列,其收敛性等价于问题的开环可解性.然后证明了代价泛函的一致凸性等价于两个耦合微分Riccati方程的可解性,并且在代价泛函一致凸的情况下,唯一的开环最优控制存在状态反馈表示.最后,一些例子来说明理论发展。

英文摘要:

This paper is concerned with a mean-field linear quadratic (LQ, for short) optimal control problem with deterministic coefficients. It is shown that convexity of the cost functional is necessary for the finiteness of the mean-field LQ problem, whereas uniform convexity of the cost functional is sufficient for the open-loop solvability of the problem. By considering a family of uniformly convex cost functionals, a characterization of the finiteness of the problem is derived and a minimizing sequence, whose convergence is equivalent to the open-loop solvability of the problem, is constructed. Then, it is proved that the uniform convexity of the cost functional is equivalent to the solvability of two coupled differential Riccati equations and the unique open-loop optimal control admits a state feedback representation in the case that the cost functional is uniformly convex. Finally, some examples are presented to illustrate the theory developed.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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