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arXiv 1703.09415math.OC
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带约束的非时间一致随机线性-二次控制的平衡

Equilibrium for Time-Inconsistent Stochastic Linear--Quadratic Control under Constraint

Ying Hu, Jianhui Huang, Xun Li

摘要:

研究了一类具有控制输入约束的随机时间不一致线性二次(LQ)控制问题。这些问题进行了调查,在更一般的框架内与随机系数。本文旨在进一步发展一种新的方法,这从根本上不同于那些在文献中的标准控制(无约束)理论,以应付由于输入约束的存在而引起的数学困难。我们首先证明了平衡解的存在性等价于某些带约束的正倒向随机微分方程解的存在性。在凸锥约束下,得到了均值-方差投资组合均衡的显式解,并证明了该解的唯一性。最后,通过一些例子说明了我们的结果与标准控制理论的比较。

英文摘要:

In this paper, we study a class of stochastic time-inconsistent linear-quadratic (LQ) control problems with control input constraints. These problems are investigated within the more general framework associated with random coefficients. This paper aims to further develop a new methodology, which fundamentally differs from those in the standard control (without constraints) theory in the literature, to cope with the mathematical difficulties raised due to the presence of input constraints. We first prove that the existence of an equilibrium solution is equivalent to the existence of a solution to some forward-backward stochastic differential equations with constraints. Under convex cone constraint, an explicit solution to equilibrium for mean-variance portfolio selection can be obtained and proved to be unique. Finally, some examples are discussed to shed light on the comparison between our established results and standard control theory.

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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