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arXiv 1208.5757math.OCmath.PR
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带状态约束和区域切换的奇异控制问题的黏性解方法

On Singular Control Problems with State Constraints and Regime-Switching: A Viscosity Solution Approach

Qingshuo Song, Chao Zhu

摘要:

研究了一类无界区域内多维区域切换扩散过程的奇异随机控制问题。目标是最大化施加奇异控制的总期望折扣回报。这种提法源于应用领域,如最优收获多个物种和最优红利支付计划在随机环境中。利用弱动态规划原理和指数变换,刻画了一类耦合非线性拟变分不等式的值函数为唯一的约束黏性解.通过几个算例的详细分析,说明了主要结果。

英文摘要:

This paper investigates a singular stochastic control problem for a multi-dimensional regime-switching diffusion process confined in an unbounded domain. The objective is to maximize the total expected discounted rewards from exerting the singular control. Such a formulation stems from application areas such as optimal harvesting multiple species and optimal dividends payments schemes in random environments. With the aid of weak dynamic programming principle and an exponential transformation, we characterize the value function to be the unique constrained viscosity solution of a certain system of coupled nonlinear quasi-variational inequalities. Several examples are analyzed in details to demonstrate the main results.

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